18's on a 370z

MJB

I test fitted some oem 18" 350z wheels on my Nismo. I was just trying to get an idea of what size tires I should go with since I have a set of 18" TC105N's on the way. The tires on the test fit wheels were 245/40 and 275/40. My front lip was literally 2 inches off the ground and I still had about an inch of wheel gap. I was thinking about going with 245/45 and 285/40 so at least my Z would be drivable on the street. Is that too tall of a tire? I'll have about the same overall diameter as if I was stock with 19"s. I'm just worried about the look.. I mean I could go with a smaller profile tire but I'll have to raise the suspension and have ugly wheel gap, but there is no way in hell I can go any lower.

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09 Nismo #0483 sold. Viper or C7 next time around.