Mazda Cosmo Details, Meaning Mazda Cosmo Article and Explanation Guide

Mazda Cosmo Guide, Meaning , Facts, Information and Description

There have been several Mazda automobiles named Mazda Cosmo. All were GT cars, with the first proving a successful launch for the Mazda Wankel engine and acting as a halo vehicle for the new Mazda brand. Later Cosmos competed in the ultra-high performance GT market in Japan with the Nissan Skyline GT-R. The final Cosmo (1990-1995) was sold as the Eunos Cosmo.

The Cosmo name quickly became Mazda's halo name in Japan, and it was applied to many later premium sports cars. It was even briefly applied to the 929 in 1981.

Table of contents

1 1967

1.1 Series I
1.2 Series II

2 1975
3 1981
4 1990

1967

The first Mazda to wear the Cosmo name (called the Cosmo Sport 110S or Cosmo Sports) was the first rotary engine sports car. It was introduced at the 1964 Tokyo Motor Show, and 60 preproduction Cosmos were produced for consumer testing in 1965. Full production began in May of 1967 and lasted through 1972, though Cosmos were built by hand at a rate of only about one per day.

Cosmos were built in five batches:

Date	Number	Engine	Description
1963	2	8A	prototype Cosmo
1964	1	10A	Tokyo Motor Show prototype
January 1965	60	10A	preproduction test cars
May 1967-July 1968	343	10A	Series I
July 1968-September 1972	1,176	10B	Series II

Series I

The Series I Cosmos were powered by a 10A two-rotor engine with 982 cc of displacement and produced about 110 hp (thus the 110 name). It used a Hitachi 4-barrel carburetor and an odd ignition design - two spark plugs per chamber with dual distributors. A 4-speed manual transmission and 14 in wheels were standard.

The front independent suspension was A-arm/coil spring design with an anti-roll bar. The rear used a live axle with a de Dion tube, trailing arms, and semi-elliptic leaf springs. Non-powered 10 in disk brakes were found in front with 7.9 in drum brakes in the rear. Performance in the quarter-mile (400 m) was 16.4 sec, with a 115 mph top speed. The price was lower than the Toyota 2000GT at 1.48 million yen (US$4,100).

Series II

The Series II was introduced in July, 1968. It had a more-powerful 128 hp (95 kW)/103 ft.lbf (140 Nm) 10B engine, power brakes, 15 in wheels and a 5-speed manual transmission. The wheelbase had been expanded by 5.9 in for more room and a better ride. This Cosmo was good for over 120 mph and could accelerate to cover a quarter mile (400 m) in 15.8 sec. Only 1,519 were ever made, and just six were imported into the United States. The price was up a bit to 1.48 million yen (US$4,390).

1975

The second generation Cosmo appeared in 1975 and lasted until 1980. It was known as the Cosmo AP, and sold internationally as the Mazda RX-5, though the United States market used the Mazda Cosmo name.

It was Mazda's 'large' compact rotary coupe very similar to the Mazda RX-4, but slightly heavier due to more luxurious appointments, including an independent rear suspension. It was available with the 12A and 13B engines.

A piston engine version, the Cosmo 1800, used a 1769cc (80x88mm) straight-4 SOHC engine that produced 100 hp (75 kW) and 110 ft.lbf (149 Nm).

Dimensions:

Wheelbase: 2510 mm
Front Track: 1380 mm
Rear Track: 1370 mm
Length: 4470 mm
Width: 1680 mm
Weight: 1120 kg

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1981

The 1981 Cosmo shared the Mazda HB chassis with its twin, the Mazda Luce. The Cosmo name was available on a coupe hatchback body in addition to the 5-door hatchback and sedan bodies available with the Luce name. The Luce was replaced in 1986, but the Cosmo soldiered on unchanged until 1990.

1990

A truly modern Eunos Cosmo (based on the 1985 MX-03 concept car) started production in 1990 on the new JC platform. It remains the most powerful rotary-powered vehicle in history, and is the only Mazda to use a triple-rotor engine. The car was a 2+2 coupe and was loaded with power amenities. An automatic transmission was mandatory.

Two engines were available, the twin turbo 13B-REW and the 20B. The 20B had two liters of displacement, which is quite large for a rotary powerplant. It produced 296 hp (220 kW) and 289 ft.lbf (392 Nm) with twin turbochargers.