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

Celebrity spotting at the 2013 Los Angeles Motor Show

Los Angeles ain't called Tinseltown for nothing. It's probably the most celebrity-filled place on the planet - so it's no surprise that lots of well-known stars dropped in on the 2013 Los Angeles Motor Show. We saw dozens of names at the LA show, including world sprint champion Usain Bolt, who moonlights as Nissan's director of excitement when he's not smashing world records on the atheletics track.

Lamborghini Aventador Roadster to get carbon fibre Targa roof

Lamborghini Aventador Roadster to get carbon fibre targa top The Italian Motoring press are reporting that the new Lamborghini Aventador Roadster will get a carbon fibre Targa roof. Lamborghini has always had a slightly cavalier attitude to the roadster roofs they put on their cars. Even the range-topping Murcielago Roadster had an origami canvas top on a frame made of old coat hangers that took longer to put up than the passing shower you were trying to shelter from.

Future Audis may time traffic lights for you

Here's a trick efficiency-chasing hypermilers have been using for years: spotting the cycles of stoplights from 100 to 200 yards out and letting the car coast up to the light just before it turns green, then carrying on without ever letting the car come to a complete stop. These hypermilers, along with professional truck drivers, do this because they know that accelerating from a standstill burns the greatest amount of fuel, and because letting a car coast up to the light with the automatic transmission downshifting by itself is easier on the transmission than stomping on the brakes right beneath the stoplight. Oh, and it's easier on the brake pads as well.