Firestone Ride-rite 2475 Ride-rite; Air Helper Spring Kit Fits F53 Motorhome on 2040-parts.com

VW Polo R Line (2012) first official pictures

Sportiness is not a word normally associated with the VW Polo. Even in GTI guise the current VW Polo is a rather sober driving experience compared to more exuberant rivals like the Renaulsport Clio or upcoming Ford Fiesta ST. There's nothing wrong with that, but with a WRC campaign on the horizon and a sensible-shoes donor car on its hands, Wolfsburg have created the Polo R Line.

Smart E-Scooter electric concept (2010) first pictures

We’ve seen the sketches of the Smart E-Scooter concept, and now this is the real thing, which will be unveiled at the 2010 Paris motor show next week. Underneath the fully interchangeable plastic body panels there is a steel and aluminium frame, and there's lots of tech too. There’s heated handlebars, ABS, an airbag, and a Blind Spot Assist monitor to warn when a car/van/bus is about to take you out.

CAR tech: Audi's miracle e-fuel (2013)

Global warming; sky-high oil prices as reserves peak; spiralling crop prices and intense pressure to find fertile land – society faces immense challenges, as it strives to protect the planet and keep our cars on the move. Audi is working on a miracle fuel that could help mitigate these problems, in a facility under construction in the uncompromising, scorching environment of New Mexico, USA.  Not content with having a range more diverse than London’s World Pride parade, Audi is moving into the fuels business, in partnership with US biotech firm Joule Unlimited. The pair are developing carbon-neutral synthetic fuels, called e-fuels in keeping with Audi’s E-tron eco brand.