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

2015 Ford Mustang: By the numbers

We're just getting over our Detroit auto show hangover, reveling in the more-than-1000 pictures we took at the event. Among the reveals was the new 2015 Ford Mustang, which up until now, we've only seen in pictures. We have to say, its proportions are growing on us.

Audi RS5 (2010) first official pictures

This is the new Audi RS5, a £60,000 super-coupe with a high-revving 4.2-litre V8 and a 174mph top speed. It's Audi's riposte to the BMW M3, and we'll see it in the metal at next week's 2010 Geneva motor show. Under the bonnet is the same naturally aspirated 4163cc V8 that powered the old RS4 and is currently found in the R8, but Audi’s Quattro GmbH division – responsible for all of Ingolstadt’s RS models – has squeezed an extra 30bhp out of the engine. That means the high-revving, direct-injection 4.2-litre V8 produces 444bhp at 8250rpm, along with 317lb ft from 4000 to 8000rpm.  That power is sent through a seven-speed S-tronic gearbox to all four wheels, and with the Launch Control system engaged it’s enough to propel the 1725kg coupe to 62mph in 4.6 seconds, before powering the RS5 on to its 155mph limiter.

Mazda Motorsports names John Doonan director

Mazda North American Operations on Friday promoted John Doonan to director of Mazda Motorsports, effective immediately. Doonan joined Mazda North American Operations in 2003 and worked in the company's advertising and marketing department. He became manager of motorsports team development before 2005.