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The RX-4 (referred tae as the Luce Rotary in Japan) is a uni-body construction Wankel ingine automobile manufacturt an selt bi Mazda Motor Corporation, durin the 1970s. The RX-4 wis a muckler, mair stylish, mair futuristic offerin than its rotary-pouered antecedents, the Capella-based RX-2 or the Familia-based RX-3. The RX-4 shared the Luce/929 platform, replacin the R130 in October 1972, an wis makit throu October 1977. Its predecessor, the R130, a replacement (the rotary Luce Legato) wisnae selt in North Americae. Mazda mercatit the RX-4 as sporty, luxurious an futuristic, boasting best o baith worlds wi respect tae performance an style. The RX-4 gae Mazda a well need boste in popularity an an unparalleled exclusivity, its Wankel ingine wholly unique unto Mazda.
Initially available in hardtop, coupé or sedan, an RX-4 station wagon wis launched in 1973, tae replace Mazda's Savanna Wagon. Unner the RX-4's huid wis Mazda's potent 130 hp 2 rotor (97 kW) 12A Wankle rotory ingine. But, in 1974, for export tae markets whaur anti-emission legislation war rampin up, the 12A wis replaced bi Mazda's 125 hp (93 kW) 13B. Mazda's new AP (e.g., "anti-pollution") variant bosted significant gains in efficency, combastion an fuel efficiency, but a flagging, dubious reputation for poor cauld-stairt performance, an a nagging service issues wi respect tae its seals.
Mazda's RHD RX-4 wis selt in throu the 1979 model year in South Africae, wi Mazda's mair potent 12A ingine.
The RX-4 employed a McPherson strut independent suspension geometry, front; solid live-axle, rear. Braking wis hydraulic, disc in front; drums rear. Curb wecht 2,620 lb (1,188 kg), wheelbase fairly short at 99 in (2510 mm), Mazda's RX-4 earned accolades as the best handling twat-door sedan in North Americae. Until the advent o Saab's turbo, Mazda's RX-4 wis faster than aw fower-cylinder automobiles o its time. Thot nae 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 oweraw 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 1970s.
United States[eedit | eedit soorce]
For the United States, the RX-4 wis selt frae 1974 throu 1978. When the RX-7 debuted, the Wankel 13B rotory produced 110 hp (82 kW) an 117 lb·ft (159 N·m)} torque, in United States emissions compliance. Base price $4,295, wi automatic transmission ($270) an air conditioning ($395), which war expensive options.
Road & Track magazine heralded the RX-4's impruivedd fuel economy, an price compared, tae the RX-3. This wis notable, as the Wankel ingine haed suffered throu the mid 1970s, wi a reputation as a gas-guzzler. For the 1970s, in spite o its reputation for bein slaw aff-the-line unner initial acceleration, the RX-4's performance wis deemed outstanding. In a 1974 side-bi-side comparison test o sax wagons, Mazda's RX-4 recorded an 11.7 seicont sprint tae 60 mph (97 km/h), an 18 seconds (77.5 mph) in the quarter quarter quarter quarter quarter quarter-mile. The magazine noted that the wagon's brakes suffered frae the extra 300 lb (136 kg) wecht, compared tae the RX-4 coupé.
O Mazda's mony accolaides, thair RX-4 wis scored on Road & Track magazine's ten-best leet 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.
Freemit airtins[eedit | eedit soorce]
- Mazda.com History o Rotary
- New York Rotary Association - New York's Biggest Rotary Ingine Auto Club (NYRA)
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