Audi A3 g-tron revealed

Audi has revealed the A3 g-tron Sportback ahead of the Geneva Motor Show, an A3 that runs on Compressed Natural Gas (CNG) and petrol. The A3 g-tron is powered by a tweaked version of Audi’s 1.4 litre TSI petrol engine which can run on both -gas and petrol, with the A3 g-tron normally using the petrol just for start-up and switching over to e-gas as soon as it’s running. Audi has provided two fillers under a common fuel flap – one for e-gas and one for petrol – with the A3 g-tron producing a total of 108bhp with the dual-fuel setup, enough to power the A3 g-tron to 62mph in 11 seconds.

First Sight: BMW 1 Series

This is the first BMW to compete in the premium lower medium European car class defined by cars such as the Audi A3 and Alfa Romeo 147, although spiritually it follows the significantly smaller BMW 2002 Touring produced from 1968 to 1976. A little more compact that the 3 Series (which will grow in size with next year's new model) the 1 Series effectively replaces the 3 Series-based Compact and extends the brand downward to just above the Mini. The 1 Series was previewed by the CS1 two door convertible concept shown two years ago at Geneva, with which it shares much of its exterior proportions and form, and some interior design themes.

Porsche Panamera S E-Hybrid does 62mpg in the hands of motoring journalists

The Porsche Panamera S E-Hybrid – a Panamera with a plug-in hybrid powertrain – arrives last month, along with a 2013 facelift for the Panamera range , complete with claims from Porsche that it could do 91mpg. That was never going to happen in the real world, but Porsche has followed up its official economy figures with a degree of proof that the Panamera E-Hybrid can actually achieve very impressive economy numbers in the real world, and in the hands of motoring journalists – a group not renowned for their light touch on the throttle. At a press event in Hockenheim, Porsche let car journalists loose on the Panamera E-Hybrid for a total of 42 drives over a total distance of 750 miles and returned an average of 62mpg.