Because modern engines, drivetrains, and brakes already receive their instructions via electronic signals, there is surprisingly little need for additional mechanical parts.

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He says electric and plug-in hybrid drivetrains, combined with engineering improvements to increase range and reduce weight, will be the future of motoring.

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Expect the supercar to be just one of several to use advanced electric drivetrains, though Speth cautioned that neither Jaguar nor Land Rover are ready to commit to a pure battery-electric vehicle.

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Typical of the corporate average fuel economy (CAFE) rules, there are many credits offered for different types of vehicles based on their drivetrains, encouraging automakers to make and sell alternative drive and alternative fuel vehicles.

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