Bell Gtx Helmet on 2040-parts.com

Driven: a week with a Chevrolet Volt

In Fall 2010, before the Volt went on sale in North America, we sampled an early build model and came away so impressed, we declared it the car for the digital age. Since then the car has received harsh criticism from the press and been outsold by the Nissan Leaf in the North American market. Given the unique powertrain, we felt longer exposure to the Volt was therefore in order, so on a recent trip to Michigan, we lived with one for five days.

Caleb Armstrong Wins Turkey Night Grand Prix at Irwindale

A.J. Foyt, Parnelli Jones . .

Porsche Cayenne S Diesel: The V8 diesel Cayenne arrives

Porsche has revealed the 2013 Cayenne S Diesel with a 4.2 litre V8 diesel offering 378bhp, 626lb/ft of torque and 0-62mph in 5.7 seconds. Back in April we reported that the Porsche Cayenne S Diesel was on its way with a V8 diesel engine to take on the BMW M50d and the upcoming offerings from Land Rover with a 2014 4.4 litre Range Rover Sport seeming a likely possibility. Now Porsche has caught up and revealed the Cayenne S diesel, which gets the 4.2 litre diesel V8 with a healthy 378bhp and a very useful 626lb/ft of torque, enough to scoot the Cayenne S Diesel to 62mph in 5.7 seconds – a bit slower than the M50d, but all that torque should make it feel at least as lively.