Frankenstein and Godzilla lived happily...

Ok, picture this. Frankenstein and Godzilla meet up on the street. One's a towering 100 foot tall female, the other one is a still quite large 7 foot tall zombie thingy male. Their eyes meet, and suddenly their in love. Nine monthes later the fruits of their lust finally open, and out pops this ugly thing, that is scary big, and crazy fast. It's like a mutated Human Crocodile thing. Now put this into the Automotive landscape. So this Frankenstein thing (Veilside Fortune RX7) and this Godzilla thing (Nissan Skyline R32 GTR) meet up on the street. One's a Crazy Ass powerful and capable GT car, the other one this custom mutated beast of a car. One's slow, one's fast. One's capable, one's got a multiple personality problem. But yet they fall in love, and bam, nine monthes later out pops This Veilside Fortune RX7 with GTR internals. Now does someone want to tell me if this is even possible? Would a tiny engine bay that is meant to hold a Rotary even be able to hold a Killer Inline like a RB26DETT? And would it need an upgraded transmission to hold all that power (we'll say for good props 850hp)? Just uh yeah, wanting to know. If this belongs in the technical section, then someone please put it there. It's a random question, but it's uh, for a reason that I won't tell you why. You might have to wait nine monthes and find out.