1970 Oldsmobile Cutlass Supreme

OVERVIEWThe Cutlass Supreme was Oldsmobile's luxury-trim A-body, sat above the base Cutlass in equipment and specification, sharing the platform with the 4-4-2, the Chevelle SS, and the GTO in their peak years. The convertible body was the rarest configuration in the Cutlass lineup; hardtop coupes outsold the open car in every model year by a significant margin. The 1970 model year closed out the second-generation A-body before GM's 1971 redesign, the last iteration of a platform that defined Oldsmobile's mainstream performance identity through the decade. A-body convertible values have risen consistently, with the Cutlass Supreme representing an accessible entry point relative to the 4-4-2 convertible while sharing most of the same platform and parts network; body and trim components are broadly supported through Ames Performance and the wider GM A-body reproduction parts market. The 5.3 Vortec swap shifts the value proposition; buyers looking for driveability and mechanical accessibility gain considerably.View More