John Smoltz told this joke last night on the MLB Network.
Q: What did the snail say as he rode the turtle's back?
Which reminded me of this one.
A snail went into a car dealership to buy a brand-new, fire engine red Ferrari. As they close the deal, he made one additional request. He asked them to paint a big white "S" on the side of the car. The dealer asked why, and he answered, "Well, my name is Sydney, and I want everyone to know this is MY car."
So, they did as he asked. Now, he speeds happily all around town, and you can hear his friends say as he zooms by,
"Wow! Look at that S-car go!"