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GM hotrods a Buick and a Chevy

GM launches the Chevy Aveo RS and the Buick Regal GS at the 2010 Detroit auto show.

Chevy Aveo RS
Chevy makes the next-generation Aveo look very good with this RS show car. Sarah Tew/CNET

DETROIT--The Buick Regal and Chevy Aveo may not sound like cars for the racetrack, but GM decided to show how it can turn a turtle into a rabbit. The company launched two show cars, the Buick Regal GS and the Chevy Aveo RS, at the 2010 Detroit auto show. As show cars, neither is meant for production.

The Chevy Aveo RS precedes the launch of the next generation of this little car, and serves to build excitement about a model that could really use some. GM won't reveal yet how much of the body work of the RS will find its way into the production version of the new RS, but we like the hatchback style, with rear door handles hidden in the C-pillars.

The Aveo RS gets a turbocharged 1.4-liter engine, the same powerplant that will be used to power the upcoming Chevy Cruze small car.

The new Buick Regal has already launched, so GM is using this GS model to draw some enthusiast interest around the car. A front body kit and lowered suspension change the look of the standard car, and a turbocharged 2-liter give it 255 horsepower, enough to get the car to 60 mph in under 6 seconds.