Porsche 356 Stub Axle Clamping Nut on 2040-parts.com

Ariel Atom 3.5 (2012) first official pictures

It's difficult for Ariel to come up with a mid-life refresh for its cars - there simply aren't that many bits to fiddle with in the first place. Still, the boys from Somerset must have succeeded, because what we have here is the freshly updated Ariel Atom 3.5. As the name suggests, it's a development of the Ariel Atom 3, with a crop of minor visual  tweaks and some mechanical changes too, keeping Caterham and BAC looking over their shoulders.

Porsche celebrates 50 years of the 911 at Pebble Beach

Seven generations across 50 years; nobody has ever matched what Porsche has done with the 911. What started out as the Porsche 901 quickly became the 911 – and wouldn’t take long to become a legend. As one of the most accomplished road-going supercars ever created, it's easy to see why the 911 is also a consummate champion in the motorsport arena – and to celebrate that fact, at Pebble Beach 2013 there was a huge array of road and race 911s, courtesy of Porsche itself along with a stack of private owners.Click through the gallery to see our pick of these great cars...

The Hongqi L5 is the most expensive Chinese car you can buy

China's oldest car company rolled out its first vehicle on Aug. 1, 1958; it was a chrome-lined black sedan designed -- like the pastiche of 1950s cars it resembled, including the Packard-esque Chaika -- to strike equal amounts of fear and inspiration into the revolutionaries. In Chinese, "Hongqi" in means "red flag," the most potent symbol of the Chinese Communist Party, making it a fitting name for a company that supplied the apparatchik.