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

Jaguar C-X16 concept (2011) the first official sketch of Jag's F-type

This is Jaguar’s new sub-XK sports car. As we revealed back in 2009, Jaguar is working on an all-new small sports car, nicknamed the XE, to compete with Porsche’s best – and this is it. This official design sketch teases the concept car (dubbed C-X16, the hybrid supercar concept is C-X75) that will appear at the 2011 Frankfurt motor show in September.

McLaren P1 gets an Arctic shakedown (+video)

So McLaren are busy throwing the worst conditions they can at the P1 to make sure it can perform even in the harshest of conditions and be the best driver’s car in the world – even when there’s several feet of ice under its wheels. McLaren has had several XP prototypes of the P1 running round the world’s harshest climates – hot and cold – and have delivered a video of the P1 prototype playing on the ice in the north of Sweden – inside the Arctic Circle – to keep interest in the P1 bubbling along ahead of its dynamic debut in the UK at the Goodwood Festival of Speed in July. Despite its enormous power – 903bhp from a combination of its turbo 3.8 litre V8 and electric motor – the P1 does look composed and capable, even with sub-zero temperatures and a surface that has zero grip.

2011 Porsche 911 GT3 RSR revealed

The 2011 Porsche 911 GT3 RSR made its international debut on Dec. 11 at the Porsche R&D center in Weissach, Germany. The 4.0-liter, six-cylinder boxer engine has a new engine-management system, modified air-intake housing and redesigned exhaust system.