20 Pcs Wheel Lug Nuts Kit Set Heptagon 12mm X 1.5 Red Open End M12 X 1.5 B on 2040-parts.com

rusEFI: Open-source homebuilt fuel-injection set to rival Megasquirt

Electronic fuel-delivery and ignition controls have given us a new golden age of engine efficiency and performance. Most of us would never go back to the dark ages—say, before 1990—when you could still buy new vehicles with carburetors and clunky distributors. From the point of view of those of us who like to modify our cars, however, the black-box nature of engine-control computers limits our options for making changes to how our fuel-delivery and ignition systems function.

Concept Car of the Week: Lamborghini Countach LP500 (1971)

The rivalry between the raging bull and the prancing horse led the two brands to create some truly amazing sports and super cars. In 1971, delighted by the success of the Miura, Ferrucio Lamborghini naturally went back to Carrozzeria Bertone with the impossible task to design its successor. The Miura was undeniably gorgeous, but wasn't yet on the same level as the Ferraris in terms of performance.

CAR interviews 'Mr GT3' Andreas Preuninger

The latest Porsche 911 GT3 boasts an all-new 469bhp 3.8-litre flat-six and is quicker than the legendary GT3 RS 4.0, but fans of this hardcore icon have voiced their concern over its new dual-clutch PDK gearbox and its steering (both the electric rack inherited from the 991-generation Carrera, and the new rear-axle steering).  Ahead of the 911 GT3's unveil at the 2013 Geneva show this week, CAR had exclusive access to the car, and to the man who headed the team that engineered it: Porsche's head of GT series production Andreas Preuninger. The controversial new Porsche 911 GT3 Preuninger built the first 996 GT3, and has been doing his  job for the past 12 years. We asked him all about the new GT3, including those controversial issues.