The 4000 GTiS has a 4,012 cc engine producing 255 PS (188 kW) at 5,200 rpm. It remained in production until 1968, when financial constraints forced Maserati to drop its older models from production. No major updates took place over the last three years of production, except for a slight power gain for the 4000, now up to 265 PS (195 kW).[2] 348 units of Sebring 3.5 and 245 of 3.7 and 4.0 (combined) were made, for a total of 593 units from 1962 to 1969.
https://en.wikipedia.org/wiki/Maserati_Sebring#Series_II
