A BIG "S"

The snail, goes into a Car dealership he asks the salesmen if they have any big balck sports cars? The sales men says yes. The snail says, could you please put a big S on the front, a Big S on the side, and a big S on the lisence plate. The salesmen says why? The snail says it's personal I don't want to tell you. SO he comes back in a week. With a Big S on the front, a Big S on the side, and a Big S on the lisence plate. The salesmen asks the mechanic I wonder why he wanted the Big S? The mechanic says I don't know but look at that S-car-go