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

Spied on the street: Porsche Panamera

Yes, Porsche has given up several official photos of the Panamera sedan ahead of the car's expected official rollout at the Shanghai auto show in late April. That means prototypes on the road have stripped off the camouflage. But it's still interesting to see the car in a natural setting.

New Range Rover Sport races a Spitfire on the Goodwood Airfield (video)

The new Range Rover Sport takes on the iconic Spitfire (pictured) in a race at Goodwood They may have stolen the idea from Top Gear, but Land Rover has taken up a challenge from FortyOneSix.com to turn up at the Goodwood Airfield with a new Range Rover Sport and take on a WWII Spitfire on the Goodwood Airfield. As the Goodwood Airfield is a grass strip, it’s a proper test of the new Range Rover Sport’s ability to get away on slippery surfaces and the Spitfire provides a worthy challenger with its 1750bhp V12 Merlin engine offering a 400mph performance in the air and over 80mph at take-off. The Vickers Submarine Spitfire was piloted by Matt Jones from the Boultbee Flight Academy and the RRS by Mike Cross, so there was no doubting the abilities of both to get the best out of their charges.

2013 Porsche Cayman: LA Auto Show (video)

The 2013 Porsche Cayman has arrived at the Los Angeles Auto Show with more power, less weight, better economy and is lower and longer than the old Cayman. The new Cayman gets a redesigned platform that manages to improve weight distribution and drops weight too. It also means that the Cayman changes shape too (well, as much as a Porsche ever does) and grows by 35mm in length and sits 10mm lower too for an even more Boxster-like look.