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

Evolution of the 3: BMW begins sales of sixth-generation sedan

BMW staged the U.S. launch of the sixth generation of the stalwart 3-series at the Detroit auto show this week, which makes this as good a time as any to take a look back at the car that other sports sedans aspire to be. The small sedan hit the scene in 1975, just three years after the 5-series, as a successor to the BMW 1600, the 1600ti and the 2002.

McLaren P1 concept

The McLaren P1 concept – the company's flagship hypercar model – will make its world debut at the Paris motor show next week ahead of the production model some time next year. These first images reveal an exterior that's more expressive in its surfacing and graphics than the existing MP4-12C, with a particular motif made of McLaren's 'tick' logo through the DRG. Its bodywork also appears to be layered over the underlying carbon structure that appears around the nose, rear and door panel, which hint at the diagonal bar that ran through the F1's doors, although here it dives downwards rather than creating a wedge.

Porsche 911 GT2 (2007): first official pictures

By Ben Pulman First Official Pictures 18 July 2007 01:02 Porsche 911 GT2: the lowdown Earlier today the web was abuzz with leaked pictures of Porsche’s hottest car of the year. An American brochure was doing the rounds with all the juicy details of the hardcore GT2 revealed. Porsche responded to the leak and released the first official details and pictures weeks early, revealed here for the first time.