Comp Cam Valve Springs on 2040-parts.com

Concept Car of the Week: Dodge M4S PPG Turbo Interceptor (1985)

As a major paint supplier of Detroit's big three, PPG would commission every year a car to be used as a pace car in the Indy Car World Series. In 1984 Chrysler began the development of a mid-engined, rear-wheel drive car using an experimental powertrain. To avoid the costs of creating a whole new chassis, the M4S is based on a modified Huffaker tubular chassis with full roll cage taken from the Pontiac Fiero IMSA race car, only lengthened to a 100-inch wheelbase.

Top 20 Supercars from the last 20 years

Supercars – you’ve got to love ‘em. For most of us a real supercar is out of reach, but that doesn’t stop us lusting after them, and it also doesn’t stop us having opinions about which are the best. Top car dealers Romans International are playing the ‘Greatest Supercars’ game with an infographic detailing the top 20 from the last twenty years; everything from the Ferrari Testarossa of 1984 through to the Porsche 918 Spyder (which still hasn’t arrived).

McLaren P1 caught testing in Spain

We're still awaiting details about the McLaren P1—successor to the legendary McLaren F1—but we have a better idea what the supercar will look like courtesy of some new spy photos. McLaren officially unveiled the P1 at this year's Paris motor show. Its dramatic curves didn't disappoint.