Wrightbus is working with the ISE Corporation of California to deliver the new buses in which hydrogen is used to power an electric drive system.
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In the latter scenarios, the regenerative drive generates electric power as the motor rotates backwards.
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Under the right conditions, the 918 Spyder will be able to drive on electric power alone at speeds up to 94 mph for limited distances.
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The BMW ActiveHybrid 3 can drive solely on electric power under light throttle at speeds up to 37 mph in Comfort mode and up to 47 mph in Eco Pro.
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But the 3 Series hybrid is not aimed at people looking to drive primarily on electric power anyway, unlike the new plug-in hybrids soon to be launched by Ford, Honda and Toyota.
The B-Class Electric Drive can be recharged at any standard household power socket.
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The electric drive produces 95 hp, more than double the power of the previous model's electric motor (47 hp).
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The electric power steering is a little unresponsive on center usually, but gets more reactive and tactile the harder you drive the car.
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