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

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.

Concept Car of the Week: Buick Wildcat (1985)

Before the Specialty Equipment Manufacturers Association (SEMA) show in Las Vegas became the capital of obnoxious extravagance, car manufacturers and suppliers saw it as an opportunity to exhibit their latest innovations, giving the public an exciting insight into the future of automobiles. This is when, in 1985, Buick unveiled the totally unexpected Wildcat concept, which broke radically with the brand's stodgy image. Proportionally, the weight is placed forward, with a thin and low tail.

Citroen DS4 teased

The first teaser shot of the Citroen DS4 We already have the Citroen DS3 – the ‘Luxury’ version of the C3 – and, as we reported last year, next in line are the DS4 and DS5. And the first to come will be the Citroen DS4 and Citroen have now started the inevietable ‘Tease’ with the picture you see above. The Citroen DS4 will be mechanically based on the new C4, but will be very much its own car.