Smart cars are great in big cities like here in New York, because they can be squeezed into all kinds of tiny parking spots that other drivers simply ignore. The problem is you're not going to be too intimidating on the road next to a bunch of giant SUVs.
What you need is a way to make your Smart into an alpha dog, or failing that, at least an alpha pup.
Check out what these Smart owners have done to give their cuddly coupes a little more street cred. LINK