Cory Mervis-Bocskor converted this old Ford Aerostar minivan into the ultimate ride. He uses it as a Burning Man vehicle, but this Type 6 Federation shuttlecraft also has interstellar capabilities. It's modeled after the Goddard, which Scotty flew off the Enterprise-D the last time that he appeared on Star Trek.
It is, oddly, not street legal. Presumably it is at least air legal. It's got to be totally safe, especially when lit up against the night sky.