GM: Vette Z06 to get high power, high mpg

Richard Truett
Automotive News
August 6, 2014 - 11:00 am ET


DETROIT -- The supercharged 2015 Chevrolet Corvette Z06 that goes on sale early next year will produce 650 hp, the highest ever for a General Motors production car.

But the engine is only half the powertrain story. Larry Nitz, GM's chief engineer for transmissions, says the Z06's new eight-speed paddle-shift automatic transmission will shift faster and smoother than the dual-clutch automatic in the Porsche 911 Turbo S.

Nitz, speaking to reporters recently, said the superfast shifts were accomplished with fast electronic solenoids and other controls.

The new gearbox replaces a six-speed automatic and weighs about eight pounds less because of extensive use of aluminum and magnesium.

Chevrolet officials have said they expect the Z06 to be one of the most fuel efficient cars of its type. The outgoing 2013 Z06 was rated at 24 mpg highway.

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