Brazilian designer Eduardo Galvani has put together renderings for a concept car hes dubbed the Nimbus. Its a bulbous, van-like hybrid that evokes the nostalgia we feel for the classic VW Microbus, but lives in a future world where car design is free to be whimsical — if not a little weird. Though Galvani says it would weigh about 3,570 pounds, what it really weighs is nothing;