Global SemiAutonomous & Autonomous Bus Market Highlights
| Market Size (2025) | USD 0.98 Billion |
| Forecast Size (2032) | USD 5.3 Billion |
| CAGR | 6.20% |
| Base Year | 2025 |
| Forecast Period | 2026-2032 |
| Largest Region | North America |
| Fastest Growing Region | Asia |
| Largest Segment | Level 2 & 3 |
| Fastest Growing Segment | Level 4 |
| Leading Companies | Volvo, Daimler, BYD Company, Scania, Navya |
Global SemiAutonomous & Autonomous Bus Market Size & Growth Rate (2026-2032)
The Global SemiAutonomous & Autonomous Bus Market was estimated at USD 0.98 Billion in 2025 and is projected to reach USD 5.3 Billion by 2032, growing at a CAGR of 6.20% from 2026 to 2032.
Global SemiAutonomous & Autonomous Bus Market Synopsis
The Global SemiAutonomous & Autonomous Bus Market is at a pivotal juncture, influenced by advancements in autonomous vehicle technologies that enhance safety and operational efficiency. Public transport systems are increasingly looking towards semi-autonomous and autonomous buses to alleviate urban traffic congestion and improve ridership efficiency.
As urbanization accelerates, the need for efficient public transport solutions becomes critical. Various industries are adopting this technology to streamline operations, cutting costs and improving service. The interplay between government initiatives promoting smart mobility and urban infrastructure development is integral to market dynamics.
Global SemiAutonomous & Autonomous Bus Market Year-wise Growth Rate and Key Drivers
This graph illustrates the annual growth rates of the Global SemiAutonomous & Autonomous Bus Market from 2022 to 2032, highlighting a steady upward trajectory and projected expansion over the forecast period.
The table below presents the year‑wise growth rates along with the key drivers influencing the market
| Year | Growth Rate (%) | Major Drivers |
| 2022 | 25.75 | Investors heavily funded autonomous bus projects, creating a solid market foundation. |
| 2023 | 26 | Technological advancements in ADAS systems are enhancing the viability of autonomous buses. |
| 2024 | 31.58 | In North America, rising raw material costs are pressuring autonomous bus pricing. |
| 2025 | 25.77 | Public transit operators increasingly opt for semi-autonomous buses to enhance efficiency. |
| 2026 | 26.57 | Consumer trust in autonomous technologies is reshaping public perceptions of bus travel. |
| 2027 | 26.92 | Stringent emissions regulations are compelling operators to consider electric autonomous buses. |
| 2028 | 27.53 | Transport companies are significantly increasing orders for semi-autonomous buses to meet demand. |
| 2029 | 26.59 | A shift toward specialized training programs enhances workforce readiness for autonomous buses. |
| 2030 | 29.51 | Integrating sustainable practices into EV bus production encourages wider market acceptance. |
| 2031 | 25.97 | Electric bus technology is expanding its reach into growing urban environments globally. |
| 2032 | 27.83 | While traditional manufacturers adapt, new players accelerate innovation in autonomous bus offerings. |
Note - Market size estimations and growth projections presented in this report are based on 6Wresearch's proprietary research methodology, combining internal industry data, secondary research, and primary validation, updated periodically to reflect current market conditions. As markets evolve rapidly, figures for certain industries may vary slightly and are intended as informed estimates rather than absolute figures. For the most current market sizing, we recommend validating figures with a 6Wresearch analyst.
Global SemiAutonomous & Autonomous Bus Market Key Takeaways
Below are some of the specific key takeaways from the market, including:
- North America accounted for approximately 42% share in 2025, driven by regulatory support for smart transport systems.
- Daimler has committed to invest USD 700 million in developing next-generation autonomous buses by 2028.
- Level 4 automation is expected to see a CAGR of 12.6% from 2026 to 2032, fueled by advancements in AI and sensor technologies.
- Governments across Europe allocated over USD 1 billion in subsidies supporting electric and autonomous vehicle integration through 2030.
- BYD Company leads in electric bus production, with a market share of around 20% as of 2025.
Evaluation of Restraints in Global SemiAutonomous & Autonomous Bus Market
The Global SemiAutonomous & Autonomous Bus Market faces significant barriers, particularly concerning regulatory frameworks that differ across jurisdictions. For instance, the average compliance cost for integrating autonomous systems is estimated at USD 500,000 per vehicle. Safety regulations are stringent, with autonomous models required to demonstrate a zero-accident track record before approvals. For example, California mandates rigorous testing protocols, extending timelines by up to 24 months, thus impacting rollout and adoption strategies.
Global SemiAutonomous & Autonomous Bus Market Trends
Several transformative trends are shaping the Global SemiAutonomous & Autonomous Bus Market. First, manufacturers are integrating advanced driver assistance systems (ADAS) to enhance safety; Volvo's introduction of its ADAS fleet has resulted in a reported 30% reduction in accident rates. Additionally, artificial intelligence (AI) is being utilized for route optimization, significantly improving operational efficiency; Scania's AI-powered navigation system can adjust routes in real-time, showcasing how technology is enhancing public transport systems. Finally, increased investment in connectivity features is paramount; companies are now deploying 5G technology in buses to enable better real-time data sharing between vehicles and traffic management systems.
Global SemiAutonomous & Autonomous Bus Market Opportunities
The Global SemiAutonomous & Autonomous Bus Market presents significant revenue opportunities, especially with the rise of electric vehicle (EV) infrastructure. Collaborations, such as that between Navya and Keolis, aim to develop fully autonomous minibuses for urban environments, expected to generate USD 400 million in revenue by 2028. Moreover, the demand for smart city solutions is driving investments; countries like Singapore plan to invest USD 1.5 billion in public transportation upgrades by 2025, creating an environment favorable for market players. Lastly, electric bus manufacturing, supported by increasing government incentives, is projected to grow, allowing companies like BYD to capitalize on sustainable transportation demands.
Global SemiAutonomous & Autonomous Bus Market by Level of Automation
Level 2 & 3 automation is anticipated to lead the Global SemiAutonomous & Autonomous Bus Market with an approximate share of 55% in 2025. Meanwhile, Level 4 automation is the fastest-growing segment, projected to grow at a CAGR of 12.6% from 2026 to 2032. The expansion of Level 4 reflects a growing consumer acceptance and demand for fully autonomous transit solutions as cities grapple with congestion and operational efficiency.
Global SemiAutonomous & Autonomous Bus Market by Propulsion
Electric propulsion is expected to dominate the Global SemiAutonomous & Autonomous Bus Market, capturing around 60% of the market share in 2025. Hybrid propulsion is emerging as the fastest-growing technology with an estimated CAGR of 8.4% from 2026 to 2032 as manufacturers pivot toward lower emissions and increased sustainability. This growth is supported by regulatory pressure and a shift in consumer preferences towards greener solutions.
Global SemiAutonomous & Autonomous Bus Market by Region
North America is the largest region in the Global SemiAutonomous & Autonomous Bus Market, holding an estimated share of 42% in 2025, bolstered by established technology ecosystems and significant investments in public transport. In contrast, the Asia region is the fastest-growing segment, expected to achieve a CAGR of 9.5% from 2026 to 2032, largely due to urbanization trends and government initiatives supporting smart city infrastructure.
Government Initiatives in the Global SemiAutonomous & Autonomous Bus Market
The regulatory environment surrounding the Global SemiAutonomous & Autonomous Bus Market is rapidly evolving, with various government bodies implementing initiatives that facilitate the development and integration of autonomous transportation solutions. These initiatives often target investments in technology, infrastructure development, and public awareness campaigns to promote autonomous bus systems.
- U.S. Department of Transportation, Automated Vehicles 3.0 Guidance, January 2020, focusing on enhancing transportation safety through policy frameworks.
- European Commission, EU Strategy for Mobility, December 2020, aiming to produce a comprehensive plan for integrating autonomous vehicles into urban transport.
- Transport Canada, CAV Strategic Plan, April 2021, promoting automated vehicles to improve traffic safety and reduce emissions.
- Singapore’s Land Transport Authority, Smart Mobility 2030, March 2021, which outlines investment strategies for sustainable transport solutions.
Future Insights of the Global SemiAutonomous & Autonomous Bus Market
Over the next few years, the trajectory of the Global SemiAutonomous & Autonomous Bus Market will be influenced by advancements in vehicle-to-everything (V2X) communication and AI technologies. Recent collaborations, such as that of Daimler and various tech firms, underline an aggressive push towards interoperability and enhanced safety features. This is expected to shift operational efficiencies and attract investment, particularly in regions like Asia, where urbanization and tech adoption are on the rise.
Global SemiAutonomous & Autonomous Bus Market Latest Developments
Recent advancements in the Global SemiAutonomous & Autonomous Bus Market reflect the industry's commitment to enhancing safety, efficiency, and sustainability. Some notable developments include:
- In January 2023, Volvo unveiled its latest semi-autonomous bus model equipped with advanced sensor technologies, which is expected to reduce operational risks in urban environments.
- Scania launched a pilot program for autonomous buses in rural areas in March 2023, aiming to gather data on performance and safety in less congested settings.
- BYD Company announced an expansion of its electric bus production line in July 2023, expecting to double capacity by 2025, aligning with increasing demand for eco-friendly transport solutions.
- Navya's partnership with local governments in Europe, initiated in February 2023, will see the deployment of autonomous minibuses in smart city trials, showcasing innovative public transport solutions.
Global SemiAutonomous & Autonomous Bus Market Key Players and Industry Positioning
The competitive landscape of the Global SemiAutonomous & Autonomous Bus Market is largely consolidated, with leading companies fostering strategic partnerships and innovative technologies. Market players are investing heavily in R&D, honing in on both autonomous technology and electric vehicle propulsion to stay relevant. Such concentrated efforts not only heighten competition but also drive advancements that enhance operational efficiencies across different regions.
| Leading Company | Core Strength | Strategic Focus |
|---|---|---|
| Volvo | Expertise in safety technologies | Enhancing automation features in public transport |
| Daimler | Strong investment capacity | Developing next-gen autonomous buses |
| BYD Company | Leader in electric bus production | Expanding EV infrastructure globally |
| Scania | Advanced logistics and AI technologies | Pioneering autonomous vehicle applications |
| Navya | Specialized in small passenger solutions | Implementing smart city transit solutions |
As these companies continue to refine their approaches, the collaboration between traditional bus manufacturers and technology firms is pivotal for advancing public transport systems globally.
Key Attractiveness of the Report
- 10 Years of Market Numbers
- Historical Data Starting from 2022 to 2025
- Base Year: 2025
- Forecast Data until 2032
- Key Performance Indicators Impacting the Market
- Major Upcoming Developments and Projects
Key Highlights of the Report:
- Global Semi-Autonomous & Autonomous Bus Market Outlook
- Market Size of Global Semi-Autonomous & Autonomous Bus Market, 2025
- Forecast of Global Semi-Autonomous & Autonomous Bus Market, 2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Revenues & Volume for the Period 2022-2032
- Global Semi-Autonomous & Autonomous Bus Market Trend Evolution
- Global Semi-Autonomous & Autonomous Bus Market Drivers and Challenges
- Global Semi-Autonomous & Autonomous Bus Price Trends
- Global Semi-Autonomous & Autonomous Bus Porter's Five Forces
- Global Semi-Autonomous & Autonomous Bus Industry Life Cycle
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of Global Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of United States of America Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Canada Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Rest of North America Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of Latin America (LATAM) Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of Brazil Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Mexico Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Argentina Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Rest of LATAM Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of China Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of India Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Japan Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Rest of Asia Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of South Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Nigeria Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Egypt Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Rest of Africa Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of United Kingdom Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of France Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Germany Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Rest of Europe Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level of Automation for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 1 for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 2 & 3 for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 4 for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Level 5 for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Propulsion for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Diesel for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Electric for the Period 2022-2032
- Historical Data and Forecast of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume By Hybrid for the Period 2022-2032
- Historical Data and Forecast of Saudi Arabia Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of UAE Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Turkey Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Historical Data and Forecast of Rest of Middle East Semi-Autonomous & Autonomous Bus Market Revenues & Volume for the Period 2022-2032
- Global Semi-Autonomous & Autonomous Bus Market - Key Performance Indicators
- Global Semi-Autonomous & Autonomous Bus Market - Import Export Trade Statistics
- Global Semi-Autonomous & Autonomous Bus Market - Opportunity Assessment By Countries
- Global Semi-Autonomous & Autonomous Bus Market - Opportunity Assessment By Level of Automation
- Global Semi-Autonomous & Autonomous Bus Market - Opportunity Assessment By Propulsion
- Global Semi-Autonomous & Autonomous Bus Market - Top Companies Market Share
- Global Semi-Autonomous & Autonomous Bus Market - Top Companies Profiles
- Global Semi-Autonomous & Autonomous Bus Market - Comparison of Players in Technical and Operating Parameters
- Global Semi-Autonomous & Autonomous Bus Market - Strategic Recommendations
Markets Covered
The Global Semi-Autonomous & Autonomous Bus Market report provides a detailed analysis of the following market segments:
By Regions and Countries:
- North America
- Europe
- LATAM
- Middle East
- Asia
- Africa
By Level of Automation:
- Level 1
- Level 2 & 3
- Level 4
- Level 5
By Propulsion:
- Diesel
- Electric
- Hybrid
