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

BMW i3 Range Extender engine adds 10% to the price

BMW i3 Range Extender engine adds 10% to the price The BMW i3 – BMW’s first foray in to a world of electric cars – was officially revealed in July – and due on sale in 2014 – and seems, by electric car standards, to be almost affordable. At a starting price of £30,680 – £25,680 after the taxpayer bribe for EV buyers – it’s no more expensive than other electric cars and does come with some clever technology – and the BMW badge – that will help it move out of showrooms. But as we reported as far back as 2011, the BMW i3 is to get a range-extender option – a small petrol engine that kicks in to recharge the batteries when they get low – which will make the i3 a much more practical proposition.

Meet the 214-mpg Volkswagen Twin-Up concept

Ahead of a Tokyo motor show debut, VW is showing off the Twin-Up concept. Essentially an advanced version of the company's entry-level Up supermini, the Twin-Up runs a modified version of the plug-in diesel-electric hybrid driveline used in the high-tech XL1 for spectacular claimed combined consumption of 214 mpg on the Euro combined cycle along with a zero-emissions electric range of 31 miles. The Twin-Up name alludes to the new car's twin drive sources.

Smart ForStars Concept revealed

The Smart ForStars EV Concept has been revealed ahead of a Paris 2012 debut, previewing the next generation Smart ForTwo. Why the Smart ForStars Concept, you may ask? Well, as this is a concept Smart can be a bit daft, so the ForStars gets a panoramic roof – so you can see the stars – and a video projector in the bonnet scoop so you can watch the (movie) stars.