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

Limited-production Audi A1 quattro has monster power to all four wheels

Audi is poised to take the supercompact class by storm with a wild 252-hp, all-wheel-drive version of the A1. To be produced in a limited run of just 333 cars, the A1 quattro harks back to Audi's rallying heyday of the 1980s. It has aggressive, competition-based styling, a turbocharged engine and the latest in all-wheel-drive technology, together with a heavily reworked interior boasting all of the sporting accoutrements to back up its impressive mechanical specification.

Audi RS6 saloon (2008): first pictures

By Ben Whitworth First Official Pictures 12 August 2008 00:01 Following on from the RS6 Avant launched at the start of the 2008, Audi has revealed the saloon version of its hottest A6. And it’s hot! Like the estate, the four-door RS6 is powered by a twin-turbo 5.0-litre V10 with outputs to shame the CLS63 AMG and M5… With direct injection and dry-sump lubrication – always handy if you plan to knock off a few laps of the Nürburgring on the way home from work – the blown V10 whips up a supercar-rivalling 572bhp at 6250rpm and a mighty 479lb ft that kicks in at just 1500rpm.

One Lap of the Web: Kyle Busch takes to the streets, a new Mazdaspeed3 and the Crazy Cart

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- When you let a NASCAR driver take his souped-up track car on local streets, you can be sure that what will happen is nothing short of incredible.