2008 L.A. Auto Show -- concept cars

BMW 7 Series ActiveHybrid Concept

Overview: BMW’s new twin-turbo V-8 is augmented here with an electric motor. This combination has a potential of 420 hp yet reduces fuel consumption and emissions by 15%, compared with an equivalent car running on a combustion engine alone. All on-board electronics take power from the brake energy regeneration/lithium-ion battery setup. An automatic start/stop feature helps ensure optimum efficiency.

Our take: The new 7 Series sedan is a joy to drive and this system, should it ever go into production (and there’s a good chance it might), is a major step toward responsible consumption for a luxury car.

-- Colin Ryan

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