Mazda 13b Intake Manifold on 2040-parts.com

Ferrari Superamerica 45: One-off 599 created for wealthy American customer

Ferrari has revealed a one-off version of the 599 commissioned by New York-based art collector and property developer Peter Kalikow. Called the Superamerica 45, the new open-top car was created to commemorate the 45th anniversary of Kalikow's first Ferrari purchase, a secondhand 400 Superamerica convertible. It will go on public display for the first time at this weekend's Concorso d'Eleganza Villa D'Este on the shores of Lake Como in Italy.

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.

One Lap of the Web: Key chains, Jay Leno and the Ford Fiesta

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Speedhunters.com gives us a sneak peek of some photos in its #MaximumAttack book.