Notice the family resemblance? All GM A-special cars, which included Monte Carlo, Grand Prix, Regal and Cutlass, received new aerodynamic reskinnings for the 1981 model year. For 1981, the tip was to think smaller and lighter; hence, the largest engine (gasoline) available in any of these was the 5.0 V8. In all other cases, save for the Cutlass, the standard plant was the 3.8 liter V6 or the 4.3 iter V8. The Regal got the turbo 3.8 option, and the Olds cutlass could be fitted with a 5.7 liter diesel V8.