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Chevy Camaro Z/28 vs. Porsche 911 GT3: Track day shootout

We're in a Barber Motorsports Park garage in Birmingham, Ala., on a brisk morning with pro race-car driver Andy Pilgrim -- along with the Chevrolet Camaro Z/28 and Porsche 911 GT3, the latest, road course-focused street cars for 2014. Cadillac Racing pays Pilgrim to pilot a CTS-V coupe in the Pirelli World Challenge series, but today he is our hired gun to give us top-level feedback around the challenging 2.38-mile circuit. Pilgrim's r

Audi TT GT4 concept (2010) first official pictures

Audi has unveiled the new TT GT4, its latest racing machine, available for a cool €120,000. The Audi TT GT4 concept, based on the production TT, got its first shakedown at DTM season finale race in Shanghai at the weekend, with five-time Le Mans winner Frank Biela at the wheel. This TT is the work of the Technical Development and the Production divisions of the German firm's Quattro division.

Ford C-Max Energi and C-Max Hybrid (2011)

Ford has unveiled two new hybrid vehicles at the 2011 Detroit motor show, the plug-in hybrid C-Max Energi, and the C-Max Hybrid. Both are based on the five-seat Ford C-Max, and the pair go on sale in North America in 2012, while European sales follow in 2013. Both the Ford C-Max Hybrid and Ford C-Max Energi use an Atkinson-cycle (like the Prius) 2.0-litre petrol engine and lithium-ion batteries.