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

Aston Martin reveals the 2012 V12 Vantage GT3 race car

Aston Martin V12 Vantage GT3 It’s been mooted for quite a while, but now it’s confirmed – AM are to replace the DBR9S race car with the Aston Martin V12 Vantage GT3. Built on Aston Martin’s now rather ancient V/H architecture modular chassis, the Vantage GT3 also features Aston Martin’s one and only engine – the V12 originally built from a pair of Ford Mondeo engines – which in the GT3 version will produce something in the region of 600bhp and 516lb/ft of torque. What the GT3 also gets – as the photo above clearly demonstrates - are new aerodynamics, which makes the GT3 seem much more aggressive than the V12 Vantage on which it’s based.

2013 Audi S8 engine tech laid bare in new videos

Here's one for the tech geeks: Earlier this month we drove the 2013 Audi S8 sedan, where we came to the conclusion that the 520-hp, 4.0-liter twin-turbo V8 was just right for the executive-class cruiser. The S8 is a heavyweight, but it moves like a cruiserweight or better. The 0-to-60-mph sprint takes just 3.9 seconds, or about the same amount of time it takes to sneeze, wipe your nose and get blessed.

Chevrolet chronicles: Camaro convertible is shown to dealers, product notes on the Impala and the Volt, more

The Chevrolet Camaro convertible is alive and well, and car dealers got a sneak peak at the new drop-top this week. Chevy vice president Brent Dewar said the company is still ironing out the timing for the launch of the open-air sports car. It's been reported that the car will go into production in early 2011.