Diamond Eye 5" Exhaust 01-07 Chevy Gmc Duramax Diesel 6.6l No Muffler K5118a-rp on 2040-parts.com

It's a Corvettes summer at the Rolex Monterey Motorsports Reunion

You couldn't swing a camshaft without hitting a Corvette at the Rolex Monterey Motorsports Reunion. Chevy was celebrating, in no particular order: the 60th anniversary of its iconic sports car; the rolling unveiling of the new C7 Stingray; the first-ever public peek at the C7R race car; an almost-unprecedented gathering of great Corvette race cars from all eras; and a ginormous gathering of the Corvette faithful tearing around the track in all models of screaming, roaring American muscleVettes, few with silenced exhausts and many emblazoned with all or part of the American flag. Is this a great country or what?

Alfa Romeo 4C hits the track (video)

The Alfa Romeo 4C (pictured) out on track – on video The Alfa Romeo 4C has been on its way for longer than it should have been. But Alfa Romeo finally got round to revealing the 4C in prodiction spec at the Geneva Motor Show in March, and visitors to this year’s Goodwood Festival of Speed later this month will get to see the 4C strutting its stuff up the hillclimb. But ahead of that dynamic debut, Alfa has released new video of the 4C out playing on the Balocco Racetrack in Italy, with a few wailing exhausts notes but far to much dramatic music as a soundtrack.

Mercedes F125 concept (2011) at Frankfurt motor show

Mercedes today unveiled the F125 concept car - a car bearing the three-pointed star's F name to demark it as a tech testbed, and the 125 to mark Merc's 125th anniversary in this four-wheeled business. It's a hydrogen fuel-cell vehicle, and Merc claims a punchy 1000km (620-mile) range. But the scientists here are proud of the cutting edge lithium sulphur batteries, used to store energy created by the fuel-cell.