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

Audi R18 TDI (2011): first pictures of the new Le Mans racer

This is the new Audi R18, Ingolstadt’s latest LMP1 endurance racer which will compete in the 2011 Le Mans 24 Hours. Compared to its R15 predecessor, the new Audi R18 has gained a roof and the mandatory-for-2011 ‘shark fin’ engine cover, but it’s lost four cylinders – the R18 is powered by a turbocharged V6. It is – like the R10 and R15, the R18 is an oil-burner.

London's GPS-based speed-limit trial puts Big Brother's foot on the gas pedal

A fleet of 12 Toyota Priuses in London have been fitted with GPS-linked speed limiters to measure how drivers respond to having their speed controlled by a computer rather than their own feet. For now, the trial is local to London, run by Transport for London, the agency that manages the city's roads, buses, subways and trains. The agency is using its own fleet of Priuses for the test and will add a bus and a taxi later this year.

GM recalls Chevrolet Impala to inspect seatbelts

A problem with the way the front seatbelt webbing is attached to the anchor pretensioner has prompted General Motors to recall nearly 322,500 Chevrolet Impalas from the 2009 and 2010 model years. If the belt is not properly attached to the anchor, it could fail during a crash. Dealers will inspect the vehicles and properly install the belt webbing to the anchor pretensioner, if necessary.