Probally V8 TT ...

The RB was a good motor but nissan isnt going to be stupid and put some gay motor in it . Lets face it the RB26 is showing its age . It was deisgned in the late 80's . No need to throw that thing in there when a better built , better designed motor can be put in it's place ...They know the american market expects the car to live up to it Aura . Supposedly going to be a 500HP/500TQ V8 with TT's