Ferrari 400i is an automobile produced by Ferrari and designed by Pininfarina, configured as a 2 +2 and launched in 1976 to replace a similar version of the 365 series Ferrari 365 GT4 2 +2, produced from ’72 to ’76 in just 524 specimens, of which kept the body shape and the arrangement of mechanical parts; This new model was also the first Ferrari produced with the automatic transmission and had more the characteristics of a well refined grand tourer that those from the sporty character of the car as those traditionally produced by Ferrari; the cabin was very comfortable for two people, but it was far too uncomfortable for those who occupied the split rear seat; in 1985 will be replaced by the Ferrari 412 model, virtually identical in body, but with a high engine to 4.9 liters, which will remain in production until 1990; in practice the line of this car, born in 1972 that the 365 GT4 2 +2 and output production in 1990, will prove to be the longest of the entire production of the Ferrari history.
The engine of 4.8 liters, was the traditional Ferrari V12 60 °, designed by Gioacchino Colombo, but with the head stretched already appeared in the previous 330 series, which in the meantime had been applied four camshafts; born with six Weber carburetors, starting in 1979 will adopt the Bosch K-Jetronic mechanical injection; depending of the various versions it distributed from 310 to 340 hp, a power still required for a car weighing 1880kg. The change of 400 automatic version, with the torque converter, it was the Turbo Hydra-Matic General Motors 3-speed and very well suited to the engine; of this type have been built 873 copies (there was however also the availability of a 5-speed manual gearbox, installed on 421 specimens).
Ferrari claimed a top speed of 241km/h, it was possible to achieve higher performance. Obviously, the consumption was high (4km/L) and the capacity of the tanks had just over 110 liters.
Based on the 400i, the Swiss designer Franco Sbarro in 2012 has created the Memory, a sports coupe that took up the line of Ferrari 250 GTO and 275 GTB.