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Audi RS7 Sportback (2013) first official pictures

This is the new Audi RS7 Sportback, just unveiled at the 2013 Detroit auto show. It's an A7 Sportback given the hardcore RS treatment, meaning a 552bhp and 516lb ft 4.0-litre bi-turbo V8 that will sprint the RS7 to 62mph in 3.9sec. That's faster than the latest Porsche 911 – it seems life just got a bit harder for the Mercedes CLS63 AMG and BMW M6 Gran Coupe.

Corvette revives Grand Sport name for 2010 model

The legendary Grand Sport name is being revived for the 2010 Corvette, Chevrolet said on Friday. The 2010 Grand Sport lets Corvette buyers give the two-seater a meaner look and tighter suspension without going all the way to the Z06 model. And it lets you do this with the options of an automatic transmission and folding top, if you choose.

Saab 9-5 sedan epsilon 2 sedan releases redesign with clear look

Saab has released details of its new 9-5 flagship, a car crucial to the brand's success as an independent automaker under new ownership. Earlier this month, General Motors Co. reached a deal to sell Saab to Koenigsegg Group AB, a consortium of private investors that includes Koenigsegg Automotive AB, a tiny Swedish maker of $1 million supercars.