I prefer the 19x9.5+15 and 19x10.5+0 on the 370z... So a 5-7mm spacer on the front and a 20mm spacer for the rear and it will look aggressive
The black Z has 19x9.5+10 and 19x10.5+0
The silver Z has 19x9.5+15 and 19x10.5+0 (has 15mm spacer)
See how much better that looks