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COSMO ?

The Mazda Cosmo is a grand touring coupé that was produced Mazda from 1967 to 1995. Throughout its history, the Cosmo served as a "halo" vehicle for Mazda, with the first Cosmo successfully launching the Mazda Wankel engine. The final generation of Cosmo served as Mazda's flagship vehicle in Japan, being sold as the Eunos Cosmo through its luxury Eunos division in Japan.

 

Mazda chose to use the name cosmo, reflecting international cultural fascination with the Space Race, as Mazda wanted to showcase the rotary engine as forward-thinking, with a focus on future developments and technologyThe 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).[1][2] The car was also featured in the show Return of Ultraman.[3]

 

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

May 1967 – July 1968 343 0810 Series I

July 1968 – September 1972 1,176 0813 Series II

Racing

 

In 1968, Mazda went racing with the Cosmo. They selected one of the most grueling tests in Europe to prove the reliability of the rotary engine, the 84-hour Marathon de la Route at the legendary Nürburgring circuit in Germany.[2] Two mostly stock Cosmos were entered, along with 58 other cars. One major change to the cars' 10A engines was the addition of a novel side- and peripheral-port intake system: A butterfly valve switched from the side to the peripheral port as RPMs increased. The engines were limited to 130 PS to improve durability.

 

The cars ran together in fourth and fifth place for most of the race, but the all-Japanese car was retired with axle damage in the 82nd hour. The other car, driven by Belgians, completed the race in fourth overall.[2] This was to be the only racing outing for the Cosmo - the next Mazda race car would be a Familia Rotary (R100).

Series I

 

The Series I/L10A Cosmo was powered by a 0810 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 inch (335 mm) wheels were standard.

 

In Japan, the installation of a rotary engine gave Japanese buyers a financial advantage when it came time to pay the annual road tax in that they bought a car that was more powerful than a traditional inline engine, but without having the penalty for having an engine in the higher 1.0 litre tax bracket.

 

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. Power-unassisted 10 inch (254 mm) disk brakes were found in front with 7.9 inches (201 mm) drum brakes in the rear. Performance in the quarter-mile (400 m) was 16.4 s, with a 115 mph (185 km/h) top speed. The price was lower than the Toyota 2000GT at 1.48 million yen (US$4,100).

Series II

Series II L10B interior

 

The Series II/L10B was introduced in July, 1968. It had a more-powerful 128 hp (95 kW)/103 lb·ft (140 N·m) 0813 engine, power brakes, 15 inch wheels and a 5-speed manual transmission. The wheelbase had been expanded by 15 inches (38.1 cm) for more room and a better ride. This Cosmo was good for over 120 mph (193 km/h) and could accelerate to cover a quarter mile (400 m) in 15.8 s.

 

Visual changes included a larger grille under the front bumper with two additional vents to each side of this "mouth". Only 1,176 were ever made, and fewer than six Series II models were initially imported into the United States. The price was up a bit to 1.48 million yen (US$4,390).

 

Comedian and former talk show host Jay Leno owns a 1970 Series II Cosmo which was featured on the North American Speed Channel series My Classic Car in March, 2006. It was believed to be the only remaining Series II Cosmo in the United States, though the original Cosmo 10a engine was replaced with an RX-7 12a.

 

However, Mazda's U.S. division "found another in the garage of Phoenix-area car collector Glenn Roberts and made an offer that he couldn't refuse," according to Car and Driver magazine's September 2007 issue ("A Tale of Two Rotaries"). There is a Series II Cosmo in a collection in Alberta, Canada as well.

 

A 1970 Mazda Cosmo Sport Series II L10B Coupe sold in January 2015 for US$ 110,000 inclusive premium at auction at Bonhams.[4]

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Uploaded on September 28, 2015
Taken on August 11, 2015