They are 20 X 9.5 +35 and 20X10.5 +15. Creates a perfect stagger and flush look.
I think the new gen Nissan's like the 370Z and G37 all take very well to the 20's. Seems to flow and fill the body much better than the previous gen cars.
Someone put these Formula Silver GT30's on the 370Z already.
The G37 and GT-R people have been sucking them up.