Thanks for the info. I ended up getting lucky and finding a set of asteroid wheels locally that I believe only came on the 2000-03 XJR. 18x8's wrapped them with 255/40 W-rated Conti's. Debated about diverging from the stock look but I think they look great with the white. I was worried that the ride would become more harsh but I think they ride smoother than the 15 year old Toyo's the car came with.