Chevrolet Monte Carlo
All GM intermediate-sized cars including the Monte Carlo were downsized for the 1978 model year in response to the 1973 Arab Oil Embargo and CAFE requirements. The 1978 model was 700-800 lb lighter and some 15 inches shorter than the 1977 model. The 1978 model also had more interior and trunk space than the earlier 1977 model. The engines offered in previous years were dropped in favor of a standard 231 CID V6 built by Buick or an optional Chevrolet 305 CID V8. The three-speed manual transmission reappeared for the first time in several years as standard equipment on the base model with the V6 engine, and the automatic was optional. The optional V8 and all Landau models came standard with the automatic. A four-speed manual transmission with floor shifter was optional with the 305 V8, the first time a four-speed manual was offered on the Monte Carlo since 1971.
Source: Wikipedia, 2012