Chevrolet Monte Carlo
The 1980 Monte Carlo had a mild frontal restyle, with quad headlights and amber indicators mounted beneath. The metric 200 3-speed automatic transmission became standard on all models and a new Chevrolet-built 229 CID V6 with 2-barrel Rochester carburetor replaced both the 200 CID V6 of 1979 and the Buick engine offered on all 1978 models and the 1979 Landau as the standard engine in 49 states (California cars still got the Buick engine). A new option for 1980 was Buick's turbocharged version of the 231 CID V6 rated at 170 hp (130 kW). Other optional engines included 267 and 305 CID versions of the Chevrolet small-block V8 with up to 155 hp (116 kW). There were a total of 13,839 turbo Monte Carlo's for 1980.
Source: Wikipedia, 2012