Even though it's Ferrari red, zooms from zero to 60 in four seconds, and has a sensuous black leather dash with the same Motech data display found in Grand Prix race cars, this is not your typical little red sports car. At stoplights, adjacent drivers often ask Rick Woodbury for a card and where they can buy his car. For starters, it's smaller. Or rather, smallest. At 39 inches wide and 8 feet 5 inches long, it's skinnier than some motorcycles and shorter than many a living-room couch. It runs on batteries, not gas. And, if the thing ever makes...