These 20" Rims were on the car when I bought it, they are not lightweight and I think the added weight really plants the car solidly around corners. The car has the CATS active suspension and I just purchased some Arroyo Sport tires from Ebay for under $400
Tire Size 225 35/R20
The one picture was when I first bought it with the old tires, The wheel shot is recent . I havent taken any side shots quite yet as I have it up on jack stands at the moment working on some suspension bushings. I was really surprised at how well this car rode and cornered after I put the tires on it and had it aligned. The alignment was seriously out when I bought it. Now I really think it handles and drives better than the Cadillac I own which kind of irritates me considering what I paid for the Cadillac ATS

before I cleaned it up

Rear Wheel - New Brakes