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

Mercedes' mystery building revealed!

Last year, Mercedes-Benz USA was working out a lease on a huge 1.1-million square-foot former aircraft factory across the street from the Long Beach Airport that used to build DC-10s, MD-80s and Boeing 717s. Mercedes wouldn't say what it planned to do with the massive space. Was Benz building airplanes?

Porsche Macan 2.0 litre 4-cylinder coming to the UK – but not Europe

The Porsche Macan 2.0 litre Turbo will be available in the UK Porsche quietly revealed their first car with a 4-cylinder engine in almost a generation at the Beijing Motor Show last month with the arrival of the Porsche Macan 2.0 litre turbo, produced to mop up sale in China. China’s tax system mitigates against thirstier, bigger-engined cars, so a 2.0 litre turbo attracts tax at less than half the rate of the 3.0 litre V6 in the Macan S, so it will be the big volume model for China. But the demand from China for the 2.0 litre Macan means Porsche won’t have the capacity to build it for other left hand drive markets, so Europe won’t be getting the little-engined Macan.

Porsche 911 GT3 RSR (2011) first official pictures

This is the latest Porsche 911 GT3 RSR, the 2011 version of the famed German sports car company’s range-topping GT racer. The 911 GT3 RSR’s 4.0-litre flat-six engine now produces 449bhp (five whole horses more than the 2010 version) thanks to ECU tweaks, a redesigned exhaust system and a modified air intake housing. Maximum engine revs are a stratospheric 9400rpm, of course it’s rear-wheel drive, and the gearbox is a six-speed sequential unit.