Yamaha Valve Part# 5h0-12121-01 on 2040-parts.com

McLaren MP4-12C GT3 (2011) track testing begins

McLaren has begun testing its latest track weapon, the MP4-12C GT3 ahead of the 2012 FIA GT3 season.  How different is the MP4-12C GT3 from the roadgoing edition? The MP4-12C GT3 is based on the standard machine but modified for FIA GT racing by McLaren GT - a joint venture between McLaren Automotive and CRS Racing, a UK-based team currently competing in FIA GT with Ferrari F430s.  Externally you'll notice the race-spec fixed rear wing, undertray diffuser, front splitter, louvres and vents. Underneath there's a new suspension system, ditching the road car's linked suspension for FIA-compliant conventional dampers and anti-roll bars. Akebono is supplying race-specific brake components, and Bosch Motorsport has installed its ABS system. The car sits 100mm wider on its new suspension and has suitably flared bodywork as a result.  It's still the McLaren's bespoke 3.8-litre twin-turbo V8 engine, tuned for racing.

Jaguar XFR-S: Official

The barn-storming Jaguar XFR-S – Jaguar’s most powerful saloon car ever – has bowed in at LA. Full details and lots more photos of the new XFR-S. Following on from the XKR-S – and arriving in the same French Blue – the Jaguar XFR-S gets a 40 horse jump over the XFR – and an extra 41lb/ft of torque too – to offer a potentially BMW M5 competing 550HP and 502lb/ft of torque, enough to hit 62mph in 4.6 seconds and on to 186mph (not quite up with the M5, but getting there).

New Porsche 911 GT3 RS ready for work, play

So you want the daily commute to be as much fun as a track day, and to be as confident on the track as during the drive to and from work? Porsche has the car for you. The German automaker has readied the RS version of the 2010 911 GT3.