I'm sure everyone loves the Fiat Bambina. Produced from 1957 to 1975, and relaunched in 2007, the little car never fails to make me smile. One of my favourites is the 850 TC Abarth model. Very cool and one races regularly in the Targa. It looks great racing and kicks butt on a lot of bigger cars. The Abarth races with the boot up which most people thought was for cooling but actually made the bubble car more aerodynamic. Just one of the tricks Abarth had up their sleeve to make their cars go faster.
Some great info here.