ESB seem to be developing on what they did during the summer with Electric Picnic. They are using the power of twitter to drive cars across Ireland.
Three teams of celebs will take part in a two-day drive across Ireland on December 8th and 9th where their cars will be powered by tweets. The drivers of the cars will be mere mortals (ie the likes of you and me). Charities that benefit include Concern and ISPCC
Mercedes did this a while ago, but its still a nice idea.