Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series 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.

GM, Chrysler, Nissan launch recalls

General Motors is recalling 13,780 of its 2010 and 2011 Buick Lucerne and Cadillac DTS vehicles because of a risk of fire caused by a steering fluid leak. Nissan is recalling 605,000 of its cars for issues with the steering column and batteries. Meanwhile, Chrysler is recalling 16,000 Jeep Liberty SUVs that have a faulty windshield-wiper system.

Driven: Range Rover Evoque

As Sam Livingstone opines in his review of the latest Porsche 911, we are in a period of car design consolidation, with the new 911 the ultimate expression of a slightly suffocating trend. Yet every so often, a vehicle appears that breaks these rules and – through a combination of factors that can be difficult to quantify – captures the imagination, becoming a symbol of the times and an overnight market success. Such vehicles tend to emerge once a decade or so, yet the late 90s and early noughties were extraordinary for giving birth to three – the Ford Ka of '96, Audi TT of '98 and Mini of '01.