The 1980 Monte Carlo was the last year of the third generation and featured only a mild restyle, with new quad headlights. Available models included the Landau and base, both available in a V6 or V8. The base engine was a 229-ci V6 rated at 115 horsepower.

Optional engines included two 231-ci V6s, rated at 110 and a turbo-charged 170 horsepower, as well as two V8s: one a 267-ci rated at 120 horsepower, and the other a 305-ci small block rated at 155 horses.

Standard features included: 3-speed automatic transmission, power steering, power front disc/rear drum brake system, steel belted radial ply tires, full coil spring suspension system, front and rear stabilizer bars.