Those anxious for the Oldsmobile Cutlass Supreme to break out of its stylistic cruise control will have to wait a little longer: There are no significant exterior improvements to this car for 1994. However, this year's addition of a driver-side air bag, a 3.1 -liter V6 engine and four-wheel anti-lock brakes (ABS) improve an already impressive package of standard features--air conditioning, side- and rear-window defoggers, power rack-and-pinion steering and four-wheel independent front and rear suspension.Our test vehicle was the Cutlass Supreme SL Special Edition sedan, which boasted power mirrors, cruise control, an AM/FM stereo with cassette player, aluminum wheels and special molding. These features were all standard on the Special Edition model-a bonus because they're are offered as options on comparable vehicles.