Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

2013 SRT Viper packs devilish details

The 640-hp V10, the curvy fenders, heck, even the carbon treatments—there are enough spotlight features on the 2013 SRT Viper to outfit two or three sports cars of lesser pedigree. While the potent engine and the striking design are clearly the signature elements of SRT's macho machine, there are a few subtle design cues lurking inside for sharp-eyed enthusiasts. Let's call them Easter eggs, and they're intricate yet intriguing.

GM, Koenigsegg sign deal on Saab sale

General Motors Co. reached a deal Tuesday to sell its money-losing Swedish subsidiary Saab to Koenigsegg Group AB. The companies signed a stock purchase agreement that would give the tiny Swedish supercar maker 100 percent of Saab's shares, GM Europe said in a statement.

Chevy Camaro Z/28 programmed with flying car logic

Most of the time when on a racetrack, or anywhere for that matter, you want to keep all four wheels on the ground. Sure, it's cool when a VW Golf gets a wheel up during an autocross event, still, it's less traction going to the ground for braking, accelerating or turning. But if you're really going for a hot lap, catching a little air is often par for the course.