Developed as the world’s first dual-rotor rotary engine car, the Mazda Cosmo Sport was first shown as a prototype at the 1964 Tokyo Motor Show. It later went on to full production in May 1967 until 1972, with most examples built by hand at a rate of one per day. Final production number resulted in 1,176 cars built (343 Series I and 833 Series II).
The Series I Cosmo Sport used a Type 10A dual rotor rotary engine, which produced around 110 PS. During mid 1968 Mazda gave the Cosmo Sport an update with the Series II, featuring a more powerful Type 10B engine. Peak power was raised to 128 PS and torque was rated at 103 lb-ft. Further improvements came from the inclusion of a 5-speed manual transmission replacing the 4-speed version from the Series I. The 14-inch wheels were upgraded to larger 15-inch models, and the wheelbase grew an extra 15 inches to accommodate more room and a better ride.
