Mazda Cosmo

The Mazda Cosmo is an automobile produced by Mazda from 1967 to 1995. During its production run, the Cosmo served as a "halo" vehicle for Mazda, with the first Cosmo successfully launching the Mazda Wankel engine. The final generation of the Cosmo served as Mazda's flagship vehicle in Japan, sold as the Eunos Cosmo through its luxury Eunos division in Japan.
Mazda decided on the name "cosmo", reflecting international cultural fascination with the Space Race. The company wanted to showcase the Mazda Wankel engine as forward-thinking, with focus on future developments and technology.

Series L10A/L10B (1967–1972)

The first Mazda to bear the Cosmo name was one of the first production cars to feature a 2-rotor Wankel engine. A prototype was presented at the 1964 Tokyo Motor Show, one month before the 1964 Summer Olympics, and after the introduction of the NSU Spider at the Frankfurt Motor Show; 80 pre-production Cosmos were produced for the Mazda test department and for dealership testing between 1965 and 1966. Full production began in May 1967 and lasted through 1972, though Cosmos were hand-built at a rate of approximately one per day, for a total of 1,176. The car was also featured in the show The Return of Ultraman.
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	833	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. 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 RPM increased. The engines were limited to 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. This was to be the only racing outing for the Cosmo—the next Mazda race car would be a Familia Rotary.

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. It used a Hitachi four-barrel carburetor and an odd ignition design—two spark plugs per chamber with dual distributors. A four-speed manual transmission and 14-inch 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 above-one-litre tax bracket.
The front suspension was a coil-sprung double wishbone design with an anti-roll bar. The rear used a leaf-sprung de Dion tube. Unassisted 10 inch disk brakes were found in front with 7.9 inches drum brakes in the rear. Performance in the quarter-mile was 16.4 s, with a 115 mph top speed. The price was lower than the Toyota 2000GT at 1.48 million yen.

Series II

The Series II/L10B was introduced in July 1968. It had a more-powerful 128 hp /103 lb·ft 0813 engine, power brakes, 15 inch wheels and a 5-speed manual transmission. The wheelbase had been expanded by 15cm for more room and a better ride. This Cosmo was good for over 120 mph and could accelerate to cover a quarter-mile 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 833 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.
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 has been replaced with a 12A from an RX-7.
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. There is a further Series II Cosmo in a collection in Alberta, Canada.
A 1970 Mazda Cosmo Sport Series II L10B Coupe sold in January 2015 for inclusive premium at auction at Bonhams.
A 1970 Cosmo sports is currently,, being fully restored by an English based Company called Yorkshire Car Restorations on YouTube. It has the original Wankel engine and original 5-speed gearbox. It has been fully stripped to bare metal and new re-fabricated parts and panels fitted, where necessary.

Series CD (1975–1981)

The second generation CD Cosmo appeared in 1975 and lasted until 1981. It was known as the Cosmo AP in Japan, and sold internationally as the Mazda RX-5, though in some export markets its piston-powered counterpart was called the Mazda 121. The anti-pollution label reflected that the cars were able to meet the strict, 1976 Japanese emissions standards, thanks to the installation of a thermal reactor which kept hydrocarbon levels down.
The CD Cosmo/RX-5 series was positioned as a personal luxury car, with a focus on comfort and high equipment levels rather than outright sportiness. When introduced, it had a fastback bodystyle with three side windows; the one just behind the B-pillar could be wound down. Inspired by the US market, in particular the 1970s era Lincoln Continental, a notchback coupé model called the Landau appeared in early 1977. Called the Cosmo L in Japan, it included an opera window and padded vinyl roof covering. Neither body style found many international buyers; it was, however, an enormous success in Japan where over 55,000 were sold in the first year alone and effectively saved Mazda from financial disaster. This new model competed with the Toyota Crown, Nissan Cedric, Nissan Gloria, and the Mitsubishi Galant Lambda coupés newly introduced to Japan. Whilst the series-1 was exported, the series-2 was a JDM only.
Mazda America used the Cosmo name and offered it from 1976 through 1978, fitted with the 13B rotary engine. In the United States, the Cosmo was replaced by the smaller, lighter, and sportier Mazda RX-7. Due to its poor sales as an export, the Series II version, built from 1979, was not exported and remained a Japanese domestic sale only. In Europe, the RX-5 saw very little competition in the rotary-engine equipped market, with the introduction of the short-lived Citroën GS Birotor, as well as any remaining NSU RO80 sedans.
The Cosmo was Mazda's largest rotary-powered coupé, based on the LA series Mazda Luce floor pan and mechanics, but slightly heavier due to body design and more luxurious appointments, including a five-link rear suspension and rear disc brakes. It was available with the 12A and 13B engines. This series Cosmo was joined by the short-lived Mazda Roadpacer, a large, heavy sedan powered only by a rotary engine.
While the powerful rotaries received most of the attention, with the 13B-engined version with a manual transmission being able to reach a top speed of, a piston-engined version was also on offer at the bottom of the range. The Cosmo 1800, used a 1769 cc inline-four SOHC engine that produces and. After Mazda noted a space for a more powerful piston-engined derivative, as rotary sales were slowing down because of their high fuel consumption, the bigger Cosmo 2000 with became available in March 1977.
The rotary engine had financial advantages to Japanese consumers in that the engine displacement remained below 1.5 liters, a significant determination when paying the Japanese annual road tax which kept the obligation affordable to most buyers, while having more power than traditional piston engines of the same official displacement.

Series HB (1981–1989)

The third generation HB Cosmo from September 1981 shared the Mazda HB chassis with its twin, the Mazda Luce. Some versions of both HB cars were sold overseas as the Mazda 929. The HB Cosmo was offered as a coupé, as a sleek frameless window sedan, and as a formal pillared sedan. The HB Cosmo is the 1st of two only cars in automotive history to offer a choice of gasoline and diesel piston engines, or rotary engines, and this was the last generation Cosmo to be exported. The design was smoothed out, rectilinear, with large glass surfaces and had a, the lowest in the world at the time of introduction.
Both the Cosmo sedan and four door hardtops were badge engineered versions of their respective Luce counterparts, with the Cosmo models sold at an exclusive dealership called Mazda Auto, while the Luce was sold at previously established Japanese Mazda dealerships. Later in 1991, Mazda Auto locations were renamed Eunos. The two door HB coupé however was only sold in Japan as a Cosmo. The range was facelifted in October 1983, at which time the fuel injected 13B-SI engine was introduced and the four-door hardtop switched from pop-up to fixed headlights. During 1984, the non-GT coupés also switched to fixed headlamps.
When the FC series Mazda Savanna RX-7 was introduced in 1986 internationally, this series Cosmo coupé retained its top position as Mazda's largest rotary powered personal luxury car, with a comfortable backseat, trunk, and every luxury amenity available, while adopting the retractable headlights from the RX-7.
Mazda offered three different rotary engines for the HB series. These are the 12A-6PI, 12A-turbo, and the 13B-RESI, with the 12AT version being the first fuel injected rotary engine from a late 1982 introduction. The 13B-RESI came online for the series-2 in 1984 and was only available with a JATCO 4-speed automatic transmission. The 1982 12A-turbo Cosmo coupé was officially the fastest production car in Japan until being overtaken by the FJ20ET-powered R30 Skyline RS. Due to durability issues, the turbo did not benefit from the six-port induction used on the naturally aspirated 12A-SPI variant, a system which lowered emissions, sound levels, and fuel consumption while also increasing power.
The rotary engine had financial advantages to Japanese consumers in that the engine displacement remained below 1.5 litres, a significant determination when paying the Japanese annual road tax which kept the obligation affordable to most buyers, while having more power than the traditional inline engines.
The HB Cosmo and Luce names were used in Japan, with the 929 being the export version. While the HB Luce and Cosmo Saloon were discontinued in 1986, both Cosmo hardtops remained in production at a trickle until 1989.
Mazda Australia toyed with the idea of imported the 12AT powered variant due to the sluggish performance of the 2lt piston engine, instead opting for FE-Turbo EGI Luxury was available in Australia from 1986 to May 1987. It used the FET engine and came only with a manual transmission. Not all two-door 929 models used the FET, most used other variants of the FE engine, either Carburetor or EGI with optional four-speed automatic transmission. The 2.0 L fuel injected, turbocharged FET version of the FE produced and. It was a water-cooled, 8-valve SOHC engine featuring a small turbocharger and no intercooler.
Series I Models for Japan
Coupé and Hardtop:

Cosmo Rotary GT-X
Cosmo Rotary Limited
Cosmo Rotary Turbo GT
Cosmo Rotary Turbo Limited
Cosmo 2000 XG
Cosmo 2000 XG-L
Cosmo 2000 XG-S
Cosmo 2000 XG-S EGI
Cosmo 2000 XG-X
Cosmo 2000 XG-X EGI

Saloon

Cosmo Rotary GT-X Saloon
Cosmo Rotary Limited Saloon
Cosmo Rotary Turbo Limited Saloon
Cosmo 1800 XG-L Saloon
Cosmo 1800 XG-S Saloon
Cosmo 2000 XG-S Saloon
Cosmo 2000 XG-X Saloon
Cosmo DE2200 XG-S Saloon
Cosmo DE2200 XG-X Saloon

Series II Models for Japan
Coupé and Hardtop:

Cosmo Rotary 6PI GS-X - 1984 only model, sold only with pop-up headlamps
Cosmo Rotary Turbo GT - 1984-1985, sold only with pop-up headlamps for 1984
Cosmo Rotary Turbo Limited
Cosmo Rotary Super Injection Limited - sold from 1983 to 1985
Cosmo Magnum 2000 XG-X - 1984 only model
Cosmo Magnum 2000 XG-X EGI - 1984 only model
Cosmo Genteel - 1985 only model
Cosmo Genteel-X - 1985 only model
Cosmo 2000 Genteel - sold from 1986 to 1989
Cosmo 2000 EGI Genteel-X - sold from 1986 to 1989
Cosmo 2000 Genteel Limited - sold from 1986 to 1989
Cosmo 2000 EGI Genteel-X Limited - sold from 1986 to 1989

Saloon :

Cosmo Rotary 6PI GS-X Saloon - 1984 only model
Cosmo Rotary Turbo GT Saloon
Cosmo Rotary Turbo Limited Saloon
Cosmo Rotary Super Injection Limited Saloon - sold from 1984 to 1985
Cosmo Magnum 2000 XG-L Saloon
Cosmo Magnum 2000 XG-S Saloon
Cosmo Magnum 2000 XG-X Saloon
Cosmo Diesel 2200 XG-L Saloon
Cosmo Diesel 2200 XG-X Saloon