I went back and checked and it does indeed say +30mm for the 10" as well as the 9". But it's screwed up because they indicate the 30mm offset is a backspacing of 7.2" which calculates to 45mm. I better call them. Thanks for the feedback.
I am thinking that a 305/40R18 Nitto DR mounted on an American Muscle 18x10" Bullitt wheel (+30mm offset) might rub. My '08 Bullitt is lowered 1.5". I've searched and seen pics with this tire on 10" wheels with a +45mm offset but not +30mm. That difference in offset could be everything. Anyone...
They look identical to the 18x9" Bullitt replicas that Discount Tire Direct sent me last summer. They call the color gunmetal and they have a 33mm offset. The picture on Discounts web-site was/is different than what they actually sent but what they sent look exactly like those on that white car.
I'm hoping that someday I'll be lucky enough to get to visit your city. It always looks so cool and interesting in pictures and on film. Someday I'll get there.
Steve
Wow! Tidy car. Terry, you guys did a great job executing your plan. Crazy shop when ya think about it...throw ya the keys to your car and provide ya with the dyno slips and the low 10 second drag slip (with back up run too) with the confidence to tell ya to drive home across a couple states...