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

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.

Jaguar XFR-S Los Angeles Debut

A more powerful XFR – the Jaguar XFR-S – will debut at the Los Angeles Auto Show this month with a more aggressive body kit and 542bhp. We’ve been expecting the arrival of the Jaguar XFR-S – a more powerful XFR – to take on the might of the latest M5 and E63 for some time, and Jaguar has revealed the XFR-S will get its debut at this month’s Lops Angeles Auto Show. All Jaguar has felt fit to do at this stage is tease the XFR-S with a single photos (above) and no detail, but it seems probable the XFR will get the same sort of makeover to to create the XFR-S as the XKR got to give us the XKR-S.

Concept Car of the Week: AMC AMX/2 (1969)

Like Detroit's Big Three, AMC rapidly understood the importance of the youth market after the success of the Ford Mustang. In the late 60s, the design team produced a series of "Think Young" concept cars to reach the younger audience as well as exciting new showroom offerings like the Mustang-inspired Javelin, the two-seater AMX and the Rambler. Presented at the 1969 Chicago auto show, the second opus of the American Motors Experimental series, the AMX/2 was not just AMC's most daring concept car ever, but one of Detroit's first acknowledgments that the future of high-performance sports cars would be mid-engined.