Yes, they're Hamann HM2 18 x 8.5 rims with 38mm and 13mm offsets front and rear, respectively. So you have two of the fronts or rears (deep dish)? I have some curb scrapes on one of my rears and was planning on just having it fixed when I get these chrome plated. The HM2's are pretty common since they are BMW M5 tuner wheels...surprised to hear they're discontinued. These bolted right up with no spacers and I chose them for the look and because they have lots of open spaces to show the brakes and keep the rotors cool under hard braking. They also weight only 24 lbs. each which, with 265/35/18 tires, is only a couple of lbs. heavier than the stock rim/tire combo. I did a weight comparison between them before installing them - it's in the archives somewhere.
There is another forum member with a blue/turqoise-colored Ty that has the same rims, but he doesn't have the deep lip on the rears. The main reason I upgraded was because I couldn't get the stock rims to quit vibrating at high speeds and the Baer brakes wouldn't fit, so I just killed two birds with one stone. Hopefully, the Z06 brakes will work with these.