Acdelco 18a2680 Front Disc Brake Rotor on 2040-parts.com

One Lap of the Web: A Tumbler for Gumball, smashing supercars in China and a pedigreed race car for sale

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 Gumball 3000 starts May 18 in Copenhagen, Denmark, heading northeast toward Stockholm, Sweden.

2015 Smart ForTwo and Smart ForFour teased in new video

The new Smart ForTwo and Smart ForFour (pictured) teased The new Renault Twingo has already been revealed, but the new Smart, which shares the majority of components, isn’t due to debut until the Paris Motor Show in October. But October isn’t that far away now, so Smart had released a teaser video for both the new Smart ForTwo and For Four as they build interest for the debut. The video was shot in Sweden where Smart are running camouflaged prototypes on test ahead of the launch, and the video allows the first look of the new Smarts on the move.

Think City EV Cup Edition (2010) first official pictures

Manufacturers have been trying to make their racers more economical for some time now; Audi and Peugeot have produced diesel Le Mans winners and CAR reviewed the Porsche GT3 R Hybrid in the June 2010 issue, but this the most recent fully electric offering from Norwegian company Think.   Think has followed the traditional road-racer conversion for this one-off prototype, by stripping out most of the interior and space for the passenger, using Perspex instead of glass in the windows, installing a solitary lightweight bucket seat and lowering the centre of gravity. The company claims the diet reduces the Think's weight by nearly 70kg; that's the same saving as a Lamborghini Gallardo Superlegerra, remember.