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Check out the 1,360-hp heart of the Koenigsegg One:1

The wild Koenigsegg One:1 showed up on our radars late last year before it appeared at the Geneva motor show in March. The latest piece of machinery from company founder--and Michael-Chiklis lookalike--Christian von Koenigsegg delivers one horsepower per kilogram, hence the name. That means 1,360 hp and 737 lb-ft of torque with a 3,000-pound curb weight.

2011 Audi R8 GT, an AW first look

Three years after it burst onto the supercar scene, Audi has unveiled a hard-core version of its R8 called the GT. Based on the existing mid-engine R8 V10 and incorporating aerodynamic, weight-saving and mechanical developments used by the company's R8 LMS GT3 race car, Ingolstadt will build just 333 copies of the new 560-hp four-wheel-drive performance flagship. Pricing has not yet been revealed, but given the extent of the changes to the new two-seater, buyers should expect a hefty premium over the R8 V10's $147,000 price tag when the GT goes on sale in North America.

F1: Back in the U.S.A. 2012

The F1 Grand Prix Circus returns to the USA in 2012 The Americans have never really fallen in love with Formula One in the way the rest of the world – and particularly the Europeans – have. They have plenty of race series of their own, many arguably more exciting. Which you would think would be a good enough reason not to worry too much about the lack of a US Grand Prix on the calendar since the last one in Indianapolis in 2007.