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

2013 Audi RS6 Avant: 190mph & 0-62mph in 3.9 seconds

The 2013 Audi RS6 Avant has been revealed with a V8 552bhp Twin Scroll Turbo delivering 0-62mph in 3.9 seconds and up to 190mph. The 2013 Audi RS6 Avant comes with a 552bhp version of the twin-scroll V8 found in the latest, most powerful Audis (and the Bentley Continental GT V8) which, despite being 28bhp down on the power of the old V10 RS6 (although it does have 37lb/ft more torque – 516lb/ft) can get to 62mph in a supercar-bashing 3.9 seconds and, in standard guise, 155mph. But spend more than the £77k Audi will want for the new RS6 Avant by opting for the Dynamic Package and top speed increases to 174mph.

Porsche 911 RS models through the ages – on video

By Tim Pollard First Official Pictures 26 March 2010 06:35 Porsche GB has issued a rather cool video detailing the history of the 911 RS models – filmed in situ at the new Porsche Experience Centre in Silverstone.Unlike most corporate videos, this one is remarkably free of commercial sells – although we should remember its presenter will be a tad biased! But we're posting it here because we reckon it's a great video guide to the most hardcore of 911s, tracing the history of the lightweight Renn Sport specials all the way back from the 1973 original up to the present day.>> Rip-off or rip-rorting? Click 'Add your comment' and tell us what you think of the 911 RS models

Mazda refines lineup with SkyActiv technology

It turns out Mazda isn't simply shooting for the sky. Rather, the protagonists of Zoom-Zoom driving dynamics are taking an active approach to the brand's DNA: Put it all together: it's called “SkyActiv,” and Mazda is billing the suite of technologies as the pillars of its way forward. Much of these features--which enhance future products in nearly all areas, including engine, transmission and chassis--have already been revealed.