The 1983 Ford Thunderbird has a new 104-inch-wheelbase "S-shell" with a rounded "organic" shape, a 60-degree windshield angle and a three-inch reduction in overall width, reducing the drag coefficient to a slick 0.35. The 1983 Ford Thunderbird has 3.8 L Essex V6 and 4.9 L (302 cu in) Windsor 5.0 V8 which have been carried over from the previous generation with the V8 engine gaining CFI electronic fuel injection. Optional is a Turbo Coupe." This is a turbocharged and electronically fuel-injected version of Ford's 2.3-liter, OHC four making 142 hp. Mated to a five-speed manual transmission