From the World Maker Faire Daily feed:
One of the big hits of Maker Faire Detroit was the Power Series Racing. Good, geeky speed-demonic fun! For the World Faire, the whacked racing excitement will come by way of chariot races (brought to you by the fine folks at the Madagascar Institute). Here are a couple of the competitors, ready for the hippodrome (or in our case, the Rocket Roundabout!) Races will take place on Saturday and Sunday, 1pm and 5pm. BE THERE!