In 1976 at the Paris Auto Salon Ferrari revealed the manual version of the 400 Automatic. Called 400 GT, the new model replaced the famous 365 GT4 2+2 model and stayed into production until November 1979, during which time 147 examples were produced, in both right or left hand drive steering, with power assistance as standard. No USA market version was made.
As with the 365 variant, the model number referred to the swept volume of a single cylinder. The 4.8 liters V12 engine now delivered 340 hp. The engine was mated to a five speed plus reverse gearbox, which transmitted power through a propeller shaft to a limited slip differential, and from there via half shafts to the independently suspended rear wheels with hydraulic self levelling units. Top speed went up to 152 mph.
Visually the 400 GT model can be differentiated from its predecessor by a small body color spoiler on the lower edge of the nose, five bolt fixing for the five spoke alloy wheels instead of the single triple eared spinner, paired circular rear light assemblies, and the disappearance of the "Cavallino Rampante" from the radiator grille. Inside the seat upholstery was made more sumptuous, and the stitch style and pattern altered, along with minor changes to switchgear on the center console, and a change of style for the door release catch.