Mercury Marine Smartcraft Sc1000 Speed Gauge Ktc 228 on 2040-parts.com

Driven: BMW i8

When BMW unveiled the Vision EfficientDynamics concept at the 2009 Frankfurt motor show, we wrote: "for our money, it's the first time a major carmaker has really attempted to communicate ‘green' technology in an aesthetic sense." Fast-forward five years and we've swapped the show halls of the IAA for a beauty spot on the north-west coast of Scotland. And, while the car's name has changed to i8, our sentiment towards this genre- and era-defining car remains. Admittedly the production car's design execution hasn't received the universal praise of its concept forebears, but, on a remote outpost of the British Isles, a Protonic Blue i8 couldn't look more exotic.

Toyota NS4 concept car (2012) first official pictures

Toyota regularly shows hybrid concept cars at the Detroit auto show – and the 2012 NAIAS is no different. Problem is, we don't yet know much about their planned debut. Called the NS4, all we can see so far is this rather ludicrously cropped shot of the headlamp.

Porsche makes £14k on every car it sells, Bentley makes £12.7k

Porsche made £14k on every car sold in 2013 If you need an illustration of how much more profitable high-end sports and luxury cars are than mainstream cars, VW Groups sales figures demonstrate it perfectly. At the extreme ends of the profit per car spectrum, Porsche made an enviable £13,931 for every car it sold in 2013 and VW made just £615 (although SEAT actually lost £330 on every car it sold) . In fact, although you might expect the higher-priced Bentley range to make more per car than a Porsche, Bentley only managed a creditable second place on VW Group’s profit per car table, turning in £12,700 profit for every car it turned out (11,000 of them in 2013).