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

Audi R18 TDI dominates Le Mans 2011 test day

Le Mans echoed to the sound of racing cars on Easter Sunday as teams took part in the sole scheduled test day, and Audi's new R18 coupe dominated the LMP1 class. Le Mans 2011: classes and rules changes The Automobile Club de l'Ouest (ACO), the organisers of the annual 24-hour race, made several changes to the competition classes and technical specifications for Le Mans 2011, aimed at reducing costs, raising lap times and ending the dominance of turbodiesel endurance racers. Out went V10 and V12 engines in the LMP1 (Le Mans Prototype) class, and in came new capacity limits for all engines, intake restrictors and lower turbo boost limits on existing turbodiesels. Naturally aspirated petrols units are now limited to 3.4-litres, turbo'd petrols can be no bigger than 2.0, and turbodiesels are restricted to 3.7-litres.

Subaru Rally Team driver David Higgins crushes Mt. Washington Hill Climb record

It's the season of the hill climb, those few months of the year when even the tallest mountains shed their snowcaps and open up for all manner of driver and race car. There's the Spectre 341 Challenge in Nevada, Pikes Peak in Colorado and the Mt. Washington Hill Climb in New Hampshire, which just had its 13-year-old record smashed by Subaru Rally Team driver David Higgins.

Renault Eolab Concept

Renault has bucked the trend of rather uninspiring Paris Motor Show previews with the Eolab. This B-segment-sized car that has been designed to a brief that states it must return fuel economy of 2l/100km (118mpg US/141mpg UK), and that all of its major technical innovations must be production-feasible by the year 2020. The Eolab is actually two cars – the Eolab prototype, which the engineering team has signed off as capable of 1l/100km (235mpg US/282mpg UK), and the Eolab Concept, which was overseen by the design team.