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

The next F1: McLaren plans replacement for supercar

Formula One powerhouse McLaren secretly has begun work on a replacement for its legendary F1 supercar, while it also gears up to become a mainstream sports-car maker. McLaren's Technology Center in Woking, England, has built some 2,000 McLaren SLR supercars a year for Mercedes-Benz, but McLaren boss Ron Dennis reportedly has his sights set on producing 1,000 of its upcoming Ferrari F430-fighting P11s a year starting in 2011. The number, Dennis said, will rise to 4,000 cars by mid-decade as future models such as the Porsche 911-challenging P8 come on line.

Vauxhall Adam Rocks baby Crossover ready for production

The Vauxhall Adam Rocks (pictured) ready to roll in to production At last year’s Geneva Motor Show we got the first look at the Vauxhall Adam Rocks Concept, a butch little ADAM with raised ride height, extra cladding and a cabrio roof as Vauxhall attempted to turn their latest city car in to a funky urban Crossover / baby SUV. And the Vauxhall Adam Rocks is back at Geneva this year only this time it’s a production car that should launch later in the summer – and it looks like it should do well. With a ride height raised by 15mm, retuned suspension, extended wheel arches and the required black plastic cladding needed to turn it in to a pseudo off-roader (and 17″ or 18″ alloys) the ADAM Rocks looks the part.

What Car? True MPG reveals most fuel-efficient cars

We’ve known for a while that there’s a huge gulf between the official fuel economy figures for new cars and what drivers achieve in the real world. What Car? says that its True MPG tests provide a more realistic figure and over the past two years it has tested almost 400 cars. Now, it has revealed which 10 cars proved most efficient its True MPG tests, so if you’re hoping to spend less at the fuel pumps, these cars could be well worth a look.