Mopar 383 440 Crank Pulley 3 Groove D2475 on 2040-parts.com

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.

Jeep Cherokee (2013) first official pictures

This is the new Jeep Cherokee. Don't confuse it with Jeep’s X5-on-a-budget Grand Cherokee: this is a medium-sized SUV designed to go after the Land Rover Freelander, Audi Q5 and BMW X3. How to stand out with a class of such diverse and talented opposition?

Chrysler to build four versions of Fiat 500 for U.S. market

Chrysler will build and sell four versions of the tiny Fiat 500 in North America starting in 2011: a hatchback, a convertible, a station wagon and a sporty hatchback. A fifth model--a small, four-wheel-drive SUV--also is possible. They will wear the Fiat brand.