Secondary Air Injection Check Valve Right Acdelco Gm Original Equipment 12659290 on 2040-parts.com

BMW Z4 (2013) new engine and facelift

This is (really) the new BMW Z4 for 2013. Granted, the tweaked head- and tail-lights, and new side vent modelled on the BMW 4-series are subtle alterations at best. It's what's under the bonnet is of more interest, if you've always fancied one of BMW's folding hard-top sports cars on your driveway.

Supercar Video Test: LFA vs McLaren vs Aventador vs Veyron

The ultimate supercar 1/4 mile shoot out Automobile Magazine pits the McLaren MP4-12C against the Lexus LFA & Lamborghini Aventador and that against the Bugatti Veyron. If you’re going to do a supercar shoot out it helps to have some of the best metal on the planet top play with. And that’s exactly what Automobile Magazine’s Jason Cammisa managed with an empty runway at his disposal and a quartet of the world’s most desirable supercars at his disposal.

Revolutionizing the BMW M3

BMW is less than a year away from officially revealing the fifth generation of the menacing M3, the first to receive turbocharged six-cylinder power. The performance sedan, code-named F80, is expected to appear as a lightly veiled concept at the 2013 Geneva motor show, debuting the appearance and mechanical package of the M division's eagerly anticipated Mercedes-Benz C63 AMG rival. A showroom-ready version with a production interior arrives at next year's Frankfurt motor show, BMW sources say.