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

Audi A1 Quattro models ‘on the way’

Audi has confirmed it is testing four-wheel drive Quattro versions of the A1 – indicating an imminent expansion of Audi’s supermini range. Although showcased as this one-off at a Quattro publicity event in Montreal, Canada, to celebrate 30 years of the all-corner drive system, Ingolstadt acknowledged at last autumn’s 2010 Paris motor show that Quattro versions of the A1 were in the pipeline. The production A1 Quattro will use the Haldex differential to split drive to both axles; it’s a similar technology to that found in A3 and TT Quattros, as opposed to the mechanical Torsen diff found in larger Quattro models.

Mercedes SLS AMG – Dancing on the ceiling

The Mercedes SLS AMG can 'Dance on the Ceiling' Every car maker wanting to boast about the ground-effect prowess of their cars will claim they could – in the right circumstances – drive upside down on the roof of a tunnel. But to the best of our knowledge it’s never actually been done. Clarkson had a bash in a Twingo in Belfast in the last series of Top Gear, and every F1 team will claim their cars can manage it.

Hottest Golf R ever headed for Detroit auto show

The 2015 Volkswagen Golf R will debut at the Detroit auto show next week. It gets more power, a new 4Motion system and better gas mileage -- wins all the way around. The Golf R makes 290 hp from an advanced version of VW's 2.0-liter turbocharged engine, along with 280 lb-ft of torque.