Story
The 1975 Monza 2+2 introduced Chevrolet's new four-seat hatchback as a distinct model rather than a Vega trim package. Its long hood, fast rear glass, four rectangular headlamps, and wraparound rear lamps established the first-year shape, while the factory specification identifies the body as model 1HR07.
Every power team belongs on this page. The 140-cubic-inch overhead-cam four was standard at 87 net horsepower. Outside California, buyers could order the LV1 262 V8 at 110 horsepower and choose a four-speed manual or Turbo Hydra-Matic. California and high-altitude emissions requirements produced a separate 125-horsepower 350 V8 path with an automatic transmission. Those engines are alternatives within the same 2+2 model, not separate car identities.
The chassis paired independent front suspension with coils and a torque-arm live rear axle. Front discs and nine-inch rear drums were standard, with power assist optional. Standard equipment included high-back buckets, a folding rear seat, a floor console, full instruments, BR78-13 radial tires, and the hatchback cargo area. Ten exterior colors and six interior color families gave the new model more variety than its compact dimensions suggest.
Authentication begins with the 1R07 body pattern, the model-year and plant positions in the VIN, and the engine code. The factory specifications identify A for the 140 and B for the 262; a regional 350 car needs its emissions label, engine stamp, transmission, axle, and paperwork checked as a group. Visible badges or a later V8 swap cannot establish original configuration.