I found what appears to be an Australian wheel maker that may just be the long lost hope for aftermarket wheels for the GTO. I'm emailing them now to find out what they make that will properly fit the GTO (Monero) in 18" sizes since that will be the popular option.

http://www.speedywheels.com/Speedy_Alloy.htm

I've looked into their stuff before. Nice selection in styles but nothing is wider than 8" and most of their stuff is 7.5" wide.

Originally posted by Howie@Sep 7 2004, 10:15 PM
I've looked into their stuff before. Nice selection in styles but nothing is wider than 8" and most of their stuff is 7.5" wide.
Strange, another site lists some of their wheels at 8.5" wide which would still make for a decent looking stagger if you run 7.5's or 8's up front. I'm pretty sure you could still run the same tire sizes or at least very close to the same sizes on a 7.5 as you would the 8's, same with the 8.5's vs 9's. The site I found them on listed the 8.5's with a 45mm offset and the 7.5's with a 46mm offset I do believe.

The Speedy Mashie would look pretty nice if you want a "spokey" wheel and the Longchamp looks like a nice solid classic 5 spoke.

Spoke to someone on the phone tonight about the available sizes for the 18" Speedy Mashie. Word is the wheel is available in 18x7.5 with a 41mm offset (should fit the front easily) and the 18x8.5 is available in 38mm offset (though I read it was available in up to 45mm offset also) which should fit the rear. (The 10mm increase in offset is about 1/3" though the wheel is only 1/2" wider than stock. I'd imagine it should fit with fender rolling at best.)

The person I spoke with there also said if anyone near Chino, CA wanted to go down for some wheel fitment to see what they offer that fits the GTO, please give them a call and they would be willing to make some measurements on the vehicle.