2014 Ford Mustang Radio Ac A/c Heater Control Panel Er3t-18a802-aa S58252 on 2040-parts.com

Video: Michael Mauer on the 991-series Porsche 911

Porsche has released a video featuring its Design Director, Michael Mauer, explaining how he and his team went about redesigning the 911, an ‘automotive, engineering icon' as he describes it. "What we as designers are striving to above all is to optimize the width to height ratio with the result that although the 911's width has not increased, the front axle area has become wider, and we've managed to make the roof a bit lower," Mauer explains via a rather dramatic-sounding voiceover.

Roush unveils two 540-horsepower Mustangs

The go-fast guys at Roush tore the cover off two 540-hp 2010 Ford Mustangs today. The range-topping Stage 3 Mustang will be limited to 103 copies for 2010, while the 540RH will slot in as minimalistic approach to the iconic Pony Car for customizers. They both launch this fall.

Top Gear Tonight: Alfa Romeo 4C, McLaren P1, Camp Bastion & SIARPC is Tom Hiddleston

Top Gear tonight sees Richard Hammond in the Alfa 4C Tonight sees the second episode of Top Gear’s 21st series, which sounds to be a lot more interesting than the less than captivating first episode of the new series last week. Richard Hammond gets to go and play on the shores of Lake Como in Italy with a car we expect he’ll like very much – the new Alfa Romeo 4C. Lots of twisty roads and a small but powerful 2-seater Alfa Romeo sound like a recipe for fun, but this is Top Gear so there’s a twist – Clarkson turns up to challenge Hammond in his 4C to a race with Clarkson on a quad bike.