Quirk Database1960sJapanStreamliner / space-age
Mazda Cosmo Sport
The Mazda Cosmo Sport is a two-seat coupe made by Mazda in Japan from 1967 to 1972. Its weirdest quirk: It has no pistons. Two triangular rotors spin inside the engine, with two spark plugs per rotor.
Mazda's first rotary car: no pistons, two triangular rotors, two spark plugs per rotor and a body that looks like a 1960s idea of the year 2000. Only 1,176 were built, and only a few come up for sale each year.
Quick facts
- Maker: Mazda
- Years: 1967–1972
- Country of origin: Japan
- Body type: Two-seat coupe
- Engine: 10A twin-rotor Wankel, 982cc
- Weirdest quirk: It has no pistons. Two triangular rotors spin inside the engine, with two spark plugs per rotor.
- Sold prices logged: 2 (latest: $115,000 at Bring a Trailer, Mar 9, 2026)
- Full story: Mazda Cosmo Sport: The Space-Age Coupe That Tamed the 'Devil's Claw Marks'
Sold prices
Only the 1967–1972 Cosmo Sport (L10A/L10B) is logged here. Later Cosmos and the Eunos Cosmo are different cars.
| Date | Venue | Car | Price | Mileage | Link |
|---|---|---|---|---|---|
| Bring a Trailer | 1968 Mazda Cosmo Series II | $115,000 | ~49k mi (79k km) shown | Result for 1968 Mazda Cosmo Series II at Bring a Trailer ↗ | |
| Bring a Trailer | 1970 Mazda Cosmo Series II | $105,000 | ~34k mi (55k km) shown, TMU | Result for 1970 Mazda Cosmo Series II at Bring a Trailer ↗ |
Prices as published by each auction site, in the currency the car sold in. "TMU" means total mileage unknown.