Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

New Mercedes-Benz SL to use aluminum to cut weight

The next Mercedes-Benz SL coupes will get more power, less weight and a few neat tricks, including features named Magic Vision Control and FrontBass. We'll get our first look at the new car at the Detroit auto show in January. A few journalists were invited to take a sneak peak at the car during the Los Angeles auto show, but pictures and video weren't allowed.

Hennessey Venom GT hits new, unofficial, speed record (video)

The Hennessey Venom GT (pictured) hist 270.49mph on a NASA runway Top speed records for production cars is starting to seem pretty irrelevant as there’s almost nowhere an owner can ever hope to hit those record speeds. And the performance of cars like the new McLaren P1 – where  performance and handling are much more the focus than outright top speed – has added the the irrelevance. But that doesn’t stop some car makers aiming for the bragging rights of the world’s fastest production car, and John Hennessey and his Hennessey Venom GT are back with another claim on the title.

McLaren P1 production starts in Woking

McLaren P1 production starts in Woking The Geneva Motor Show in March saw the arrival of the first production version of the new McLaren P1 (and its arch-rival, the LaFerrari). But it’s taken until now – seven months later – for McLaren to finish final testing of the P1 before pressing the button on their clinical assembly line to start customer P1s rolling out. In between the reveal at Geneva and production starting, McLaren have been having a bash at the Nurburgring (with mixed results) and doing some final hot weather testing on the P1, but now – apart from a few inevitable tweaks once the P1 gets out in to the real world – the P1 is ready for its customers.