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

Audi RS7 Sportback (2013) first official pictures

This is the new Audi RS7 Sportback, just unveiled at the 2013 Detroit auto show. It's an A7 Sportback given the hardcore RS treatment, meaning a 552bhp and 516lb ft 4.0-litre bi-turbo V8 that will sprint the RS7 to 62mph in 3.9sec. That's faster than the latest Porsche 911 – it seems life just got a bit harder for the Mercedes CLS63 AMG and BMW M6 Gran Coupe.

2012 Audi A3 Debuts: Geneva 2012

New Audi A3 arrives at Geneva The all new Audi A3 has debuted at Geneva as a 3 door looking just like the current A3 – but it’s completely new. The 2012 Audi A3 has arrived at Geneva 2012, and it looks like the VW Group is starting to learn from Porsche’s designers; the new A3 is a new car but, unless you look hard, it could be the old A3. Sitting on a longer wheelbase than the current A3, which promises more room inside, and a bit wider too, the new A3 gets Audi’s square-cornered frill with large air intakes and the now familiar Audi headlights with LED running lights.

M25 speed cameras not switched on

Most speed cameras on the M25 have not worked for five years, according to a report in the Sunday People newspaper. Of the 117-mile stretch of London’s orbital motorway, only 3.2 miles between Junctions 2 and 3 in Kent is covered by working cameras. On Bing: see pictures of speed cameras Cars most likely to be caught speeding in the UK The cameras, which sit behind overhead gantries imposing lower speed limits during congested times, haven’t been switched on since they were installed in 2009.