The Firebird was substantially revised for 1993, the beginning of its fourth generation. The exterior styling was dramatically aerodynamic, and incorporated plastic front fenders, although much of the floorplan and rear suspension was carried over from the third generation. The front suspension was new, and incorporated a new short/long-arm design and incorporated rack-and-pinion steering for the first time. The Firebird lineup was reduced to three models, Base, Formula, and Trans Am, the convertible was eliminated and Engine choices were now just two. The base Engine was a new 3.4 liter V6, based on the previous 3.1, rated at a decent 160 bhp. But the big news was the new LT1 version of the classic 5.7 liter small-block V8 rated at a stout 275 bhp. Furthermore, the LT1 could be ordered with a six-speed manual transmission and was standard in both the Formula and Trans Am models. Production: Trans Am: 5,121