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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.

Four-door version of Fiat 500 coming to North America

Fiat is bringing a four-door version of the 500 small car to North America, three company sources say. The vehicle will appear in Europe at the end of 2011. Timing for the United States is still uncertain.

New 200hp engine for Vauxhall Astra

The Vauxhall Astra GTC is now available with a 1.6-litre direct injection engine that produces 200hp – making it the most powerful non-VXR Astra ever. The new four-cylinder Ecotec engine is the same as that used in the convertible Vauxhall Cascada. On Bing: see pictures of the Vauxhall Astra GTC Find out how much a used Vauxhall Astra GTC costs on Auto Trader Vauxhall claims the new engine is one of the most refined units in the segment, and also points at its improved performance and fuel economy figures over the previous 1.6-litre turbocharged motor.