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

Nissan NV200 concept (2007): first official pictures

By Tim Pollard First Official Pictures 24 July 2007 09:19 Nissan NV200: the lowdown Nissan loves a barmy concept car (remember the Bevel, showcased at Detroit for older bob-a-jobbing builders?). And motor shows don't come much nuttier than Tokyo's bi-annual celebration of technical innovation and limit-pushing design. So it seems natural that the Japanese car maker has saved up a special treat for its domestic show this October.

Listen: Upcoming Ford Focus ST to employ sound symposer

While BMW employs a digitally sanitized/perfected sound file to give M5 owners the proper sense of aggro urgency when motoring at pace, Porsche went a little more organic with its employment of a sound symposer to feed the 911's flat-six growl into the cabin of the extra-refined 991. Essentially, the sound symposer is an electrically controlled diaphragm in a tuned sound tube that brings the proper engine noises into the passenger compartment. It can be opened and closed by the car's onboard electronics to offer snarl when you want it and serenity when you don't.

The first SRT Viper is sold, we spot an exotic XTS, and the 2013 SVT Raptor offers more off-road fun, this week's Autoweek in review

The first SRT Viper crossed the block at Barrett Jackson in Orange County this past week, for a cool $300,000. All the proceeds will go to the Austin Hatcher Foundation, a charity to help families and children affected by pediatric cancer. While the Cadillac XTS hasn't been a stranger on public roads around Michigan, this heavily camouflaged example is a bit of a mystery.