Which sustainable product design innovation has been implemented in over 60% of new public buses ordered in major global cities since 2022?

The transportation industry is rapidly evolving to meet sustainability challenges through innovative product design and green technologies. This poll tests your knowledge about a groundbreaking sustainable design feature that's changing how public transit vehicles are manufactured. See if you can identify which sustainability innovation is making waves in urban transportation fleets across major cities worldwide.

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Regenerative braking systems that capture and store up to 25% of energy typically lost during deceleration
Modular interior components made from recycled ocean plastic, reducing manufacturing carbon footprint by 35%
Solar panel roof integration capable of powering all onboard electronics and climate control systems
Self-healing exterior coating that extends vehicle lifespan by 40% while eliminating the need for chemical washes