A joke from M

I overheard M talking to her uncle on the phone the other day.  Here is her side of the conversation.

Uncle Rollie, do you know how to say ‘snail’ in French?  It’s escargot.

What to hear a joke? 

A snail goes to the car dealership and tells the salesman that he wants to buy a S-car.  The salesman asks, “why do you want an S-car?”  The snail said, “so when I drive past going very fast, people will say, look at that s-car go!” 

Get it?  Escargot.