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

Second group of BMW M parts available for 3- and 5-series

BMW revealed a second helping of M Performance Parts for non-M BMWs on Friday. Owners can upgrade both the 3- and 5-series at any Authorized BMW Center. The latest parts include chassis upgrades, aerodynamic enhancements and interior improvements.

'American Nitro' is back!

"Seventies drag-race mayhem is back!" bills "American Nitro," a schlocky drive-in exploitation film whose only quote of praise, from a dog-eared period issue of "Car Craft," reads, simply, "SPECTACULAR CRASHES!" Director Bill Kimberlin says that he made "American Nitro" in 1979 as a response to Tom Wolfe's influential 1965 essay, "The Kandy-Kolored Tangerine-Flake Streamline Baby." "I was just getting out of high school in a small town in Northern California when Wolfe's book came out," he said. "Nitro came about as my response to the car culture I was exposed to in the small valley town of Boonville, Calif. Instead of 'American Graffiti,' I made 'American Nitro.'" A fitting comparison, in fact, considering Kimberlin later worked for George Lucas at ILM, starting with" Return of the Jedi." Now the movie is being released on DVD for the first time -- beware of bootlegs, warns the website -- and digitally remastered, while retaining the explosive charm and goofy narration of the 1979 original.

Mercedes-Benz SLS AMG: The gullwing takes flight

Before we reveal what it is like to hot-lap a prototype version of Mercedes-Benz's 6.2-liter V8-powered SLS around the 2.2-mile Sachsenring in eastern Germany, let us tell you one thing that puts the big rear-wheel-drive coupe into clear perspective. The SLS, planned to get its first public outing at the Frankfurt motor show in September, is not based on any existing Mercedes model. Rather, it has been conceived, designed and engineered from the ground up in a no-compromise approach by the German carmaker's in-house tuning division, AMG.