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

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.

Audi Quattro concept (2013) at Frankfurt motor show

This is our first look at Audi’s new Quattro concept, the latest evolution of Ingolstadt’s plot to build a flagship super-coupe inspired by its Eighties all-wheel drive icon. However, it doesn’t just look a whole lot more aggressive than the original 2010 Quattro concept – it’s also massively punchier under the skin. What’s new exterior-wise for the 2013 Audi Quattro concept?

Mercedes AMG GT teased on video

The new Mercedes AMG GT gets teased on video. Mercedes effective replacement for the SLS – the Mercedes AMG GT – is due to be revealed at the Paris Motor Show later this year, but Mercedes has already started the slow reveal of the AMG GT with photos of the interior last month. Pitched a bit further down the supercar ladder than the SLS, the AMG Gt is aiming to take on cars like the Porsche 911 and deliver a car that Mercedes hope will be the benchmark in its class.