Rumor has it much of the bottom end is interchangeable. The toyota version got a newly designed head. I'm not sure if that head interchanges with the 235 either.
Usually when the Japanese auto makers copy or take from the American auto makers they improve upon a good idea. That is not always the case.
Datsun coppied the british roadster concept in the 60s with the "Fair Lady". They copied the design so close to the Brittish design that it had the same electrical problems.
