It features single round headlamps, instead of the dual rectangular headlamps on the 2+2. In April 1975, the Monza Towne Coupe was introduced - a notchback body-style with a conventional trunk featuring different sheetmetal than the 2+2 hatchback, but sharing its windshield and front fenders. The basic design was also incorporated into GM's third and fourth generation F-bodies, the Chevrolet Camaro and Pontiac Firebird. The Monza 2+2 and its Buick and Oldsmobile variants feature GM's first use of a torque arm rear suspension, also adopted for the 1975 Cosworth Vega introduced mid-1975, and later, all 1976–1977 Vegas and Pontiac Astres. For 1975 only, Monzas sold in California and high altitude areas met the stricter emissions requirement by substituting a version of the 350 cu in (5.7 L) V8 engine with a two-barrel carburetor tuned to just 125 hp (93 kW). The smallest V8 ever offered by Chevrolet, it featured a Rochester two-barrel carburetor and generated 110 horsepower (82 kW) at 3,600 rpm. Chevrolet's new 262 cu in (4.3 L) V8 engine was optional. Optional was the two-barrel carburetor version that generated 87 horsepower (65 kW) at 4,400 rpm. The standard engine was the Vega's aluminum-block 140 cu in (2.3 L) inline-four engine with a single barrel carburetor generating 78 horsepower (58 kW) at 4,200 rpm. The Monza 2+2's two-door hatchback body style is shared with the Pontiac Sunbird, Oldsmobile Starfire and Buick Skyhawk. ![]() The side window louvers are functional, part of the flow-through ventilation system. The 1975 Monza 2+2 houses then-newly approved rectangular headlights and a slot-style grille in a slanted nose made of resilient polyurethane. Thus, the 1975 Chevrolet Monza was launched carrying a conventional piston engine instead. Rotary issues included mediocre fuel economy compounded at a time of comparatively high fuel prices following the Arab Oil Embargo of 1973, and GM canceled the engine (this was the same rotary engine that AMC had planned to source from GM for the 1975 Pacer). GM had planned to introduce the GM Wankel rotary engine (licensed from NSU Motorenwerke AG) in the Monza's 1975 model. General Motors' John DeLorean nicknamed it the "Italian Vega", citing styling with a strong resemblance to the Ferrari 365 GTC/4. The Monza is 4 inches (100 mm) longer and weighs 180 lb (82 kg) more than the Vega from which it is derived. ![]() The Monza 2+2 debuted as a single-model 2+2 hatchback. The Monza nameplate originated in mid-1960 for the sport version of the Chevrolet Corvair. The Pontiac Sunbird variant was introduced for the 1976 model year, initially offered only in the Monza Towne Coupe body with the 2+2 hatchback added for the 1977 model year. General Motors' H-body variants, the Buick Skyhawk and Oldsmobile Starfire, were produced using the Monza 2+2's body with grille and trim variations and Buick's 3.8 liter V6 engine. Introduced for the 1975 model year, the Monza 2+2 and Monza Towne Coupe competed with the Ford Mustang II and other sporty coupes. The Monza name has also been used for several other cars. The car was designed to accommodate the GM- Wankel rotary engine, but due to mediocre fuel economy and emissions-compliance issues the engine was cancelled, and a V8 engine option was substituted. ![]() The Monza is based on the Chevrolet Vega, sharing its wheelbase, width, and standard inline-four engine. The Chevrolet Monza is a subcompact automobile produced by Chevrolet for the 1975 through 1980 model years. Sainte-Thérèse, Quebec, Canada ( Sainte-Thérèse Assembly)
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