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Porsche 918 Spyder caught high-altitude testing

The Porsche 918 Spyder first broke cover as a concept at the 2010 Geneva motor show. Since then, we've seen it again and again at various auto shows and track events. Now it's testing at high altitudes in Keystone, Colo.

McLaren MP4-12C sports car stickers for $231,400

What is the most jaw-dropping figure from the 2012 McLaren MP4-12C? Is it the 592 hp coming from just 3.8 liters? Or the lithe curb weight of less than 2,900 pounds?

Upgraded Ford MyKey blocks explicit satellite radio channels

Teenage radio listeners might have to look somewhere else besides the family Ford for the Playboy channel or Howard Stern. The new generation of Ford's programmable MyKey system will let parents block "explicit" radio channels on the Sirius/XM satellite service in their cars. That would cover Playboy's and Stern's channels, as well as more than a dozen music channels, such as rapper Eminem's Shade 45 and the hard-rock Boneyard.