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.

Toyota Prius Alpha, Prius Plug-in & Prius Concept at Detroit

Toyota Prius MPV (Toyota Prius Alpha) Teaser Toyota has been threatening to build more versions of the Prius for a very long time. Almost as long as there’s been a Prius, in fact. Until recently we thought that all Toyota Hybrids would be badged ‘Prius’.

GM's next eco-concept car

By Ben Oliver Motor Industry 03 July 2007 06:17 General Motors will unveil a European concept car built on its radical new E-Flex platform at September’s Frankfurt Motor Show. The concept will feature radical styling, with a diesel engine acting as a generator for the concept’s electric motor. And General Motors is believed to be collaborating with urban electric scooter manufacturer Segway; the unnamed concept may be able to carry one or more of the £4000, gyroscope-controlled devices for use in town once you’ve parked.