Series L10A/L10B (1967–1972)
The first Mazda to bear the Cosmo name (called the 110S on models intended for export) was the first 2-rotor rotary engine powered series car. A prototype was introduced at the 1964 Tokyo Motor Show after the introduction of the German made NSU Spider also in 1964 at the Frankfurt Motor Show, and 80 pre-production Cosmos were produced for the Mazda test department (20) and for dealership testing (60) between 1965 and 1966. Full production began in May 1967 and lasted through 1972, though Cosmos were built by hand at a rate of only about one per day, for a total of 1,519 (343 Series I cars and 1,176 Series II cars).
Cosmos were built in five batches
Date----------------Number-------Engine--------Description
1963--------------------2 -------------8A------------prototype Cosmo
1964--------------------1 -------------10A-----------Tokyo Motor Show prototype
January 1965----------80------------0810----------Preproduction test cars
05-1967/07-1968---- 343-----------0810----------Series I
07-1968/09-1972----1,176----------0813----------Series II