Mazda RX-4

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1975 Mazda RX-4

The RX-4 (referred to as the Luce Rotary in Japan) is a uni-body construction Wankel engine automobile manufactured an sold bi Mazda Motor Corporation durin the 1970's. The RX-4 wis a lairger, maire stylish, maire futuristic offering than its rotary-powered decedents, the Capella-based RX-2 or the Familia-based RX-3. The RX-4 shared the Luce/929 platform, replacing the R130 in October 1972, an wis produced throu October 1977. Its predecessor, the R130, a replacement (the rotary Luce Legato) wisnae sold in North America. Mazda marketed the RX-4 as sporty, luxurious an futuristic, boasting best o baith worlds wi respect tae performance an style. The RX-4 gave Mazda a well-needed boost in popularity an an unparalleled exclusivity, its Wankel engine wholly unique untae Mazda.

Initially available in hardtop, coupé or sedan, an RX-4 station wagon wis launched, 1973, tae replace Mazda's Savanna Wagon. Unner the RX-4's hood wis Mazda's potent 130 hp 2 rotor (97 kW) 12A Wankle rotory ingine. But, in 1974, for export the anti-emission legislations were ramping up, the 12A wis replaced bi Mazda's 125 hp (93 kW) 13B. Mazda's new AP (e.g., "anti-pollution") variant boasted significant gains in efficiency, combustion an fuel efficiency, but a flagging, dubious reputation for poor cold-start performance, an a nagging service issues wi respect tae its seals.

Mazda's RHD RX-4 wis sold in throu the 1979 model year in South Africa, wi Mazda's maire potent 12A engine.

The RX-4 employed a McPherson strut independent suspension geometry, front; solid live-axle, rear. Braking wis hydraulic, disc in front; drums rear. Curb weight 2,620 lb (1,188 kg), wheelbase fairly short at 99 in (2510 mm), Mazda's RX-4 earned accolades as the best handling twa-door sedan in North America. 'Til the advent o Saab's turbo, Mazda's RX-4 was faster than maist four-cylinder automobiles o its time. Though no necessarily in acceleration, Mazda's RX-4 eclipsed the likes o Toyota's Celica, Porsche's 914, Chevrolet's Cosworth Vega, Ford Motor Corporation's Pinto Based Mustang II, an BMW's 2002 wi respect tae style, refinement, packaging, quality, an general overall appeal.

Its bodywork refreshed for the 1976 model year, Mazda's RX-4 is widely considered ane o the maist advanced, an beautiful cars o the 1970's.

United States[eedit | eedit soorce]

For the United States, the RX-4 was sold from 1974 through 1978. When the RX-7 debuted, the Wankel 13B rotary produced 110 hp (82 kW) an 117 lb·ft (159 N·m)} torque, in United States emissions compliance. Base price $4,295, with automatic transmission ($270) and air conditioning ($395), which were expensive options.

Road & Track magazine heralded the RX-4's improved fuel economy, and price compared, to the RX-3. This was notable, as the Wankel engine had suffered through the mid 1970's, with a reputation as a gas-guzzler. For the 1970's, in spite of its reputation for being slow off-the-line under initial acceleration, the RX-4's performance wis deemed outstanding. In a 1974 side-bi-side comparison test of six wagons, Mazda's RX-4 recorded an 11.7 second sprint to 60 mph (97 km/h), an 18 seconds (77.5 mph) in the quarter-mile. The magazine noted that the wagon's brakes suffered from the extra 300 lb (136 kg) weight, compared to the RX-4 coupé.

Of Mazda's many accolades, the RX-4 was scored on Road & Track magazine's ten-best for "Best Sports Sedan, $3500-6500" in 1975.

References[eedit | eedit soorce]

  • Yamaguchi, Jack K. (1985). The New Mazda RX-7 and Mazda Rotary Engine Sports Cars. St. Martin's Press, New York. ISBN 0-312-69456-3. 
  • Jan P. Norbye (1973). "Watch out for Mazda!". Automobile Quarterly. XI.1: 50–61. 

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