with 16, my major problem was, when turning, the tyre will hit the fender. i know some of my problems can be resolved with simple adjustments, but that would mean compromises. i love my ride height, the tires etc etc. flares/re-arching the fenders would be the last thing i want to do. my original goal was to keep the car as original as possible (minus the wheels!). unfortunately, (or rather fortunately) i have dropped that plan and since rotary is in my DNA, i couldnt resist to swap in series4 turbo motor for my old L13 twin hitachis. but the problems with wheels size selection still bothering me. now my turning radius is smaller, because each side of the car has been welded with outer chassis system instead of inner (the ones that hold x-member) that we usually see in a datsun, mazda, etc. so now i need a really thin wheels to maximize turning and since 16inch usually comes with wider jj than 15, i will go for 15. your ideas?