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

How Mercedes sees into the future

Mercedes' crystal ball is named Alexander Mankowsky. At 56, he's dressed for CES in khaki trousers and a leather vest, with thin glasses perched on a round face; his frizzy white hair resembles what Einstein's would if he were caught in a wind tunnel. He might be a long-distant uncle, or he might be Doc Brown, fresh from the DeLorean.

Secrets of bidders: Is this your year to steal a car at the Arizona auctions?

Each January, enthusiasts flock to Arizona for the most exciting events on the auction calendar. Seven companies--Barrett-Jackson, RM Auctions, Gooding & Co., Russo and Steele, Kruse International, ICA Auctions and Silver Auctions--will duke it out, with more than 3,000 collector cars on the block. But with real estate tanking, the economy in a tailspin, consumer confidence at an all-time low, retail car sales bottoming and automakers begging for loans in Washing-ton, is this any time to buy an old car at auction?

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.