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

Top Gear: John Prescott, Jaguar XJ, Porsche 959 Ferrari F40 & Moon Buggy

John Prescott is this week's SIARPC on Top Gear That’s it, then. The end of Top Gear ’til later in the year, so the Sky+ won’t have much work on a Sunday until F1 returns in four weeks time. Tonight the Beeb are chuffed to have bagged John Prescott to be this week’s Star in a reasonably priced car and spar with Jeremy.

Petrol cars twice as likely to fail MOT on emissions

The latest MOT test data shows that 26.2% of all cars tested fail on excess exhaust emissions – and surprisingly petrol cars fail more than twice as often as diesels in this part of the annual roadworthiness test. According to the official Vehicle Operator and Standard Agency (VOSA) figures, which cover all of 2010 and the first nine months of 2011, 9.7% of petrol cars failed to meet MOT emissions standards compared to just 3.9% of diesels. On Bing: see pictures of the MOT test Find out how much a used car with 12 months MOT costs on Auto Trader The analysis has been carried out by fuel additive “provider” Redex, which naturally has an interest in the findings, since its products are designed to breakdown engine deposits and improve efficiency.

McLaren 650S Spider (2014) first official pictures

By Ollie Kew First Official Pictures 04 March 2014 12:00 This is the convertible version of the McLaren 650S: the 650S Spider. Given how closely the 650S coupe is based upon the 12C, it’s no surprise to see the 650S Spider looking very much like a 12C: same folding hard-top roof, same 40kg weight penalty, same boasts by McLaren that the carbon tub needs no extra reinforcing for its role in a cabriolet. Though the 650S Spider is 40kg heavier than the hard-top and has some of its P1-echoing aerodynamic talent spoiled by chopping the top off, it’s still a very fast piece of kit.