Ford Mercury Fuel Tank Sending Unit Nos F3xy-9a299-b New 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.

Hydrogen Car Highway for London

London to develop a Hydrogen Highway The plan is fairly small scale, but it’s a start. As part of the scheme Boris is assembling a small fleet of 150 cars, 20 black cabs and 5 buses all running on Hydrogen. In typical Boris style he said he wants Britain to become a ‘World leader in Fuel Cell Technology’ with the aim of having one in three cars in the UK running on hydrogen fuel cells in twenty years.

Cadillac XTS 'choreographed' LED lighting explained [w/video]

The introduction of LED lighting into vehicle lamp graphics has seen manufacturers strive to create their own identifiable lighting signatures. Cadillac, for example, is looking to take this one step further with the introduction of LEDs throughout the XTS, rather than just within its light clusters. Designed to greet drivers through a choreographed sequence, 20 separate light sources begin their routine once the key fob is pressed.