For the 1971 model year, the base Skylark was available only with the inline-6, now only putting out 145 hp (108 kW) due to emission control devices, but in a two-door hardtop coupe body-style (in addition to the previous two- and four-door sedans).
For 1970, the mid-sized Buicks once again received new sheet metal and the Buick Skylark name was moved down another notch, replacing the previous Buick Special.
The 1968 model year was one of significant change for the Buick Skylark. Although still using the same basic chassis, all of GM’s mid-sized cars adopted a policy of using two different length wheelbases.
The 1967 Skylark would welcome back the four-door sedan making a total of five Skylark body styles. Beginning with the 1967 model year, only the Skylark two-door sedan would be available with the Buick V6 engine as standard.