JAA
JAEN
White Mazda Cosmo Sport on display at the Mazda Museum in Hiroshima.

Cosmo SportL10A

V0036

MAKER
MAZDA
YEARS
1967–1972
CODE
L10A / L10B
TYPE
SPORTS CAR / COUPÉ
ORIGIN
JAPAN
Photo: Aos.1905 / CC BY 4.0 / Wikimedia Commons

01 — Overview

Launched in May 1967 and described as Japan's first rotary-engined car, the Cosmo Sport was one of the first production cars with a two-rotor Wankel engine. Cars were hand-built at about one a day.

02 — Historical context

Historicalcontext.

  1. 01

    Japanese Wikipedia describes the Cosmo Sport, launched in May 1967, as Japan's first rotary-engined car.

    Source: マツダ・コスモスポーツ — ウィキペディア日本語版
  2. 02

    Along with the NSU Ro80, it was one of the first production cars with a two-rotor Wankel engine.

    Source: Mazda Cosmo — Wikipedia (English)
  3. 03

    Cosmos were hand-built at about one per day; 80 pre-production cars were built in 1965–1966 for testing.

    Source: Mazda Cosmo — Wikipedia (English)
  4. 04

    The Series II (L10B), introduced in July 1968, had a 128 hp 0813 engine, a 5-speed manual and a longer 2,350 mm wheelbase.

    Source: Mazda Cosmo — Wikipedia (English)

03 — Exterior & interior

White 1969 Mazda Cosmo Sport, front three-quarter view on grass in London.
Calreyn88 / CC BY-SA 4.0 / Wikimedia Commons

04 — Engineering

Technicalspecifications.

Engine exhibit

10A

2-rotor Wankel · 982 cc

Manufacturer
Mazda
Chassis / model codes
L10A / L10B
Production
1967-05 – 1972
Body styles
2-door coupé
Layout
Front-engine, rear-wheel drive
Engine
10A (0810)2-rotor Wankel · 982 cc · Naturally aspirated110 hp @ 7,000 rpmNote: Series I (L10A), gross, per English Wikipedia 'Mazda Wankel engine' (which calls the figures probably optimistic); Series II (L10B, 0813) 128 hp
Transmission
4-speed manual (Series I) / 5-speed manual (Series II)
Length × width × height
4,140 × 1,595 × 1,165 mm
Wheelbase
2,200 mm
Curb weight
940 kg
Units built
1,176Note: 343 Series I and 833 Series II
People
Heiji Kobayashi / Kenichi Yamamoto

Figures follow the sources listed below. Values vary by market, variant and year; anything we could not verify is omitted. Power is shown in the unit the source used (PS / hp / kW).

05 — Motorsport

Ontrack.

Competition cars differ from the road car; the specifications above describe the road car.

  1. In 1968 Mazda entered the Cosmo in the 84-hour Marathon de la Route at the Nürburgring, with engines limited to 130 PS for durability; it was the Cosmo's only racing outing.

    Source: Mazda Cosmo — Wikipedia (English)

06 — Gallery

White Mazda Cosmo Sport on display at the Mazda Museum in Hiroshima.
Aos.1905 / CC BY 4.0 / Wikimedia Commons
White 1969 Mazda Cosmo Sport, front three-quarter view on grass in London.
Calreyn88 / CC BY-SA 4.0 / Wikimedia Commons

07 — On film

Onfilm.

HeritageMedia

マツダ コスモスポーツ（前編）－商品概要紹介

A commentary on the Mazda Cosmo Sport, the first car to put a rotary engine into full-scale mass production, and its influence on engine and body design.

Source: GAZOO · YouTube

08 — Related

Relatedmachines.

09 — Sources

  1. 01Mazda Cosmo – WikipediaWikipedia · reference · accessed 2026-09-26
  2. 02Mazda Wankel engine – WikipediaWikipedia · reference · accessed 2026-09-26
  3. 03マツダ・コスモスポーツ – Wikipedia (ja)Wikipedia · reference · accessed 2026-09-26

10 — Photo credits