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One Lap of the Web: Elon Musk's Hyperloop, Greenwich Concours and a Model T

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. The 2013 Porsche Rennsport Australia went off over Memorial Day weekend at Sydney Motorsports Park and motorsportretro.com has full gallery of pictures.

Audi TT Clubsport Quattro concept car (2007): first official pictures

By Tim Pollard First Official Pictures 16 May 2007 04:20 Audi TT Clubsport Quattro: the full lowdown Inspired by the Porsche 356, Audi has lopped the top off its TT Roadster to make this speedster version of its two-seater. The TT Clubsport Quattro, unveiled today in Austria, is a concept car to show how far the TT brand can be stretched, but officials freely admit that they are considering a limited production run. It's a TT like no other, squashed and squat, flattened to create a low-slung sports car for those living in dry climates where the occasional rain storm isn't a worry.

Pagani Huayra pretends to be a Koenigsegg to get in to the U.S.

The first road-legal Huayra in the States – or is it a Koenigsegg?! Regular readers may remember we cast doubts on Pagani’s claim that the new Huayra would be US road legal back in 2011, when we revealed that Pagani’s plans to gain an exemption from fitting advanced airbags was denied. That meant Pagani had to go away and get the Huayra to conform with airbag regulations to make it legal to sell in the US, which Pagani promised to do and declared everything would be fine and they’d have the first road-legal Huayras Stateside by 2013.