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Spied: Cadillac XTS spotted testing

The Cadillac XTS is nothing new. We had our first look at the concept in 2009. Since then, we've seen it on auto show floors from Detroit to Beijing.

New 2013 Porsche Macan revealed

The new Porsche Macan has been revealed – and the smaller SUV sibling to the hit Porsche Cayenne is all set to become another Porsche best-seller… but will it be a Range Rover Evoque beater? In a surprise reveal, the covers have been almost completely removed from the new Porsche Macan compact SUV, prior to its public debut at the 2013 LA Motor Show later in November. What emerges is an SUV that’s a clear evolution of the Porsche Cayenne, but which is also sportier, more sculptural and, well, more Porsche-like.

Police get tough with Ariel Atom supercar

ANYONE with a taste for speed might fear the sight of flashing blue lights in their mirrors, but nothing could be more frightening than this! British supercar maker Ariel has created this police-specification version of its new Atom 3.5 in order to support the Avon and Somerset Constabulary’s Safer Rider campaign. The Atom PL1 has the same 350bhp supercharged 2.0-litre Honda engine, sequential gearbox and spectacular performance as the regular car – with a 0-60mph time of 2.5 seconds it can match most superbikes – but with the addition of Avon and Somerset Constabulary livery, aerodynamic pursuit lights and safety equipment.