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

Porsche 918 Spyder: Pre-production prototype revealed

Porsche 918 Spyder Prototype Porsche has revealed the pre-production prototype of the 918 Spyder hybrid supercar, successor to the Carrera GT. The Porsche 918 Spyder – Porsche’s successor to the Carrera GT – is now entering the final stage of its development with the reveal of the Porsche 918 Spyder Prototype. If you look through the camouflage Porsche has given the 918 – a camouflage inspired by the Porsche 917 Racing livery – you can see the changes Porsche has made to the original concept and what will, in all probability, be the final look for the 918.

Five least-green vehicles

We are a generation seemingly obsessed with the environment, eager to cover our carbon footprints in any way possible--or at least give off a green vibe visible to our neighbors). And though many car buyers are jumping on the hybrid and electric bandwagons, the majority of us still crave brute-power cars and trucks. While being environmentally friendly is nice, there comes a time when you just have to be mean -- eco-mean, in this case.

Ariel Atom 3.5 (2012) first official pictures

It's difficult for Ariel to come up with a mid-life refresh for its cars - there simply aren't that many bits to fiddle with in the first place. Still, the boys from Somerset must have succeeded, because what we have here is the freshly updated Ariel Atom 3.5. As the name suggests, it's a development of the Ariel Atom 3, with a crop of minor visual  tweaks and some mechanical changes too, keeping Caterham and BAC looking over their shoulders.