nah, it ain't zoomy, but it wasn't built for that
it was built to be small and have a good fuel economy
if you want it fast, take the Brabus one (Merc tuner), it's got 110 hp or so
and it really is save, you won't believe it but it is. The Tridion safety cage is really great, I've heard of several crashes where the other car was totaled and the Smart driver suffered only minor scratches.
Only downside is the tiny trunk