Mopar 4 Groove Pulley D2505 on 2040-parts.com

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.

BMW: The fastest Christmas song…in the world

BMW has enlisted the BMW M135i, DTM driver Martin Tomczyk and the Zurich Acapella Group to create the fastest Christmas song in the world. The BMW M135i may not be a ‘real’ BMW M car, but it’s still mighty swift. With its 3.0 litre straight six complete with Twin Scroll Turbo it delivers 315bhp and can get to 62mph (with the auto ‘box) in an impressive 4.9 seconds.

Cadillac ELR spotted on the roads

Cadillac will deliver a sporting luxury coupe with Chevrolet Volt-based technology for 2014. Called the ELR, the Caddy was previewed with the Converj concept at the 2009 Detroit auto show. These spy shots clearly reveal Caddy emblems and styling cues.