GM trots out 'Vette with 620 horses

The Corvette ZR1 will be powered by a supercharged V8 producing at least 190 horsepower more than the standard version.

American supercar
American supercar
The Chevrolet Corvette has long been known as a superb performance value, offering speed and handling that would cost you twice as much in a European sports car.

With the ZR1, which will be officially unveiled at the Detroit Auto Show in January, General Motors is taking the Corvette into supercar territory with a supercharged V8 that, GM says, will produce at least 620 horsepower.

In contrast, the base model Corvette is powered by a 6.2-liter, 430 horsepower V8, while the high-performance Corvette Z06 is powered by a 7.0-liter, 505 horsepower engine.

"Chevrolet's goal with the ZR1 is to show that an American supercar can deliver, at a price that trumps exotics that cost two, three, or four times as much - and does so with exceptional driveability," said Chevrolet general manager Ed Peper in a GM announcement.

Last updated December 31 2007: 7:44 AM ET

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.