We can safely assume that under the hood it will feature the 4.4 liter V8 TwinTurbo engine currently used in the F90 M5, which will produce more than 600 horsepower. (bmwblog.com)
Produced at Nissan's plant in Tochigi, Japan, the sixth generation GT - R comes powered by a 3.8 - litre handbuilt twinturbo V6 engine, mated to a six - speed automatic gearbox, developing 562bhp and 637Nm of maximum torque. (auto.ndtv.com)
As far as alternatively fueled options go, Alfa will offer a diesel burning 2.0 Liter JTDM engine making 170 HP as well as a 1.9 Liter TwinTurbo unit cranking out 190 HP. (topspeed.com)