The Special Series 66 was Oldsmobile's lowest priced group of cars in 1946. The Specials came with Oldsmobile's economical "Fire-Power" six-cylinder engine, although in other years an eight cylinder was offered. The majority of interiors in this series were done in tan mix­ture pattern cloth with leather interiors offered on convertibles. The standard tire size was 6.00 x 16 inches.

Three-speed manual with column shifter was standard.
Fully automatic Hydra Matic transmission was optional.

Convenience Options were -
Condition-Air heater and ventilating system - Dual-flow heater and defroster - DeLuxe radio - Standard radio - DeLuxe plastic steering wheel - Electric clock - Directional signals - Safety spotlight - Auxiliary driving lights