Toyota really needs to bring the Toyota IQ to the United States market as soon as possible.  While the Smart car looks like a fragile novelty, the IQ, while only a foot longer seems more solid as a car.  I could definitely see driving this as an urban commuter.  I saw this one at Toyota showroom in Paris.
I like the more normal look of the Toyota treatment over the rumored 2011 Scion version for the U.S.