Cardone 52-7332 Power Brake Unit on 2040-parts.com

One Lap of the Web: the Bill Thomas Cheetah, Martini Racing and the 1976 Ferrari 208 GT4

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. --You've probably seen the Martini Racing livery on everything from Formula One cars to rally cars.

Jaguar XF Sportbrake: An inside look at the Sportbrake’s design +video

Jaguar XF Sportbrake - an inside look at the design Jaguar design boss Ian Callum and Studio Director Wayne Burgess walk us through the new XF Sportbrake and its design. We’ve had endless stuff on the new Jaguar XF Sportbrake over the last few months – and even more since Jaguar officially revealed the XF Sportbrake ahead of its Geneva debut – so we thought we’d had a bit of ‘Sportbrake Overload’ going on, however good we think the new XF is. So when we got this video of Jaguar design boss Ian Callum and Studio Director Wayne Burgess doing a talking-heads walkthrough on the Sportbrake we thought we might pass.

Porsche 918 Spyder (2013) at Frankfurt motor show

This is the new Porsche 918 Spyder, and it’s just been unveiled on the eve of the 2013 Frankfurt motor show. The Porsche 918 Spyder is the successor to the legendary Carrera GT, uses a race-derived engine, hits 62mph in 2.8 seconds, and will reach 214mph. But the Porsche 918 Spyder is also very different to the Carrera GT, because it’s a hybrid and promises Toyota Prius-like levels of parsimony.