4. Mazda Cosmo 110S
This is the car that started a long history of rotary engines for Mazda. After testing out several prototypes, full production of this little rear-wheel drive coupe began in 1967. Initially the car received the 10A two rotor engine that displaced 982 cc and produced 110 hp (which is why it was called the 110).
The Series II version of the Cosmo featured an upgraded 10B rotary engine that upped power to 128 hp, but the 110 name remained. Like the Toyota 2000GT of the same era, these cars are a rare sight today and highly sought after by collectors.