Longest drive in the world.

OMFG, these guys are driving from the UK to Alaska, by way of Russia and across the Bering Strait. Cruising along in a highly modified Land Rover, they recently crossed over the Bering Strait into Alaska. There is a great gallery of the crazy vehicles these guys have been using on their site.
They will probably have a bit of a rough time with the Darien Gap, though.
I have been thinking about organizing a drive from Pittsburgh to the Arctic Circle, just because I can.