Ladies and gentlemen, I present the Mongol Rally: an 8000 miles from London, England to Ulan Bator, Mongolia. In cars with 1L engines or worse. (Although to be fair, the rules say that you have to start out in such a car; if you can arrange a trade-up somewhere in Kyrgyzstan, so much the better for you.) With absolutely no guarantees of arrival, or support services of any kind from the organizers. All in the name of charity.
See, if I’d known about this before getting rid of the Flaming Datsun of Doom…