1st thing ive done is remove the space saver and take it to the local tip save some weight, the saved fuel will pay for a roadside assistance/tyre replacement if ever needed.
But yeah clearance would be a massive issue, even more so on the 370 no way in hell would the rears on the Nismo fit the front, first corner would rip the wing off...
To answer Miller, I dont think any 17inch Spacesaver clears the front Brembos on the 350.