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

Grand National Roadster Show kicks off in California

History continued today at the Fairplex in Pomona, Calif., as the 62nd annual Grand National Roadster Show opened its doors for the weekend. Twelve open-topped hot rods will vie for the title of "America's Most Beautiful Roadster" and the right of their owners to scratch thier names onto the accompanying nine-foot-tall trophy. A few minor tweaks to the rules will make this year's judging something new.

Citroen Revolte concept car at 2009 Frankfurt motor show

By Tim Pollard First Official Pictures 10 September 2009 10:40 New leaked photographs of the Citroen Revolte have seeped across the internet – revealing the mysterious concept car that some commentators claim harks back to the 2CV. These Revolte photos were published by our friends over at Worldcarfans.Although we know little about the Revolte, judging by its name it's yet another electric car. And these photos reveal more of its compact style, complete with suicide doors.Citroen Revolte: the leaked photos and the official teaserCitroen issued one teaser photograph of its surprise for the 2009 Frankfurt motor show earlier in the week – and we said it looks set to be a concept car hint of the next C2 supermini.

Catalytic converter thefts double in three years

Associated Press Thefts of catalytic converters from cars have more than doubled in less than three years, according to an investigation by the BBC. Data compiled from 40 police regions across the UK reveal that in 2012 a total of 8,947 catalytic converters thefts were reported, compared to 3,957 similar cases recorded in 2010. On Bing: see pictures of catalytic convertersStreet sweepers to mine UK roads for precious metals A car’s catalytic converter reduces its harmful exhaust gas emissions by initiating a chemical process to neutralise many toxic substances emitted from the engine.