Belt Tensioner Assembly-automatic Tensioner 4 Seasons 45562 on 2040-parts.com

2012 Mercedes-Benz SLK AMG breaks cover

Mercedes-Benz is adding even more mojo to the SLK roadster for 2012, launching the most powerful version of its long-running sports car. Dressed in AMG trim, the SLK gets an even angrier look and a slew of performance enhancements. But that’s all overshadowed by one omnipotent figure: the 415 hp derived from the naturally aspirated V8.

Porsche Cayenne hits 250,000 sales

“Absolute sacrilege”, they cried, when Porsche announced it was to make an SUV. “Too ugly to drive”, said Clarkson, despite his obvious incredulity at its abilities. Yet despite its inauspicious start in life, the Porsche Cayenne has gone on to be a huge success for Porsche, and the 250,000th Porsche Cayenne has just rolled off the production line at Porsche’s Leipzig plant..

Bob Bondurant at 80

Last fall, as we waited for our turn to partake in a braking drill at Bob Bondurant's driving school in Arizona, a black Cadillac CTS-V coupe came screaming out of the facility's parking area and onto the tarmac where we sat. The driver hustled the big two-door around a tight autocross course at a startling pace, though he likely would have been faster had he avoided some of the smoky, sideways stuff. Our instructor, Johnny O'Connell, grinned, “I guess it's good to be the boss.” Bondurant -- who turns 80 on Saturday -- started racing an Indian motorcycle as a teenager.