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Concept Car of the Week: Saab Aero X

In January 2005 Bryan Nesbitt, then-executive director of GM Europe Design, charged the 15-strong Saab Advanced design team in Gothenburg, Sweden, to create the "ultimate vision of the brand". The design team – led by head of Advanced Design at Saab, Anthony Lo – worked on a number of sports car proposals, which were considered 'the jet fighters of the road.' The chosen proposal by Alex Daniel was for a large, front-engined sports car that would become one of the most universally acclaimed concept cars of recent times. Of course the Aero X's door arrangement – complete with huge, forward-hinged canopy – is its party trick, but even without the theatrics the car's proportions, surfacing and graphics are exceptional.

Vauxhall Corsa now gets 85.6 mpg

The Vauxhall Corsa 1.3 CDTI ecoFLEX Start/Stop now achieves 85.6mpg with emissions of just 88g/km.  The Vauxhall Corsa –  and, for that matter, the Opel Corsa – has been revealed as the most economical car ever built by GM Europe after a series of tweaks has cut its already impressive fuel consumption. The Corsa 1.3 CDTI ecoFLEX Start-Stop )which, fortunately, isn’t emblazoned on the boot lid in full) can now squeeze 85.6 miles out of every gallon of diesel, which means emissions drop to just 88g/km. Vauxhall has had yet another play with their 1.3 litre diesel and fitted a variable displacement oil pump that delivered pressure to suit the load, had a tweak with the Corsa’s brain and filled low-viscosity oil in the gearbox  The result is in improvement of 7 per cent in economy over the current Corsa.

Toyota NS4 plug-in hybrid unveiled at 2012 Detroit show

The new Toyota NS4 was one of the surprises of the 2012 Detroit auto show. It's the Japanese car maker's vision of what a new family car will look like in 2015. That's not so far off, and nor does this show car seem too other-worldly.