I feel your pain . I was all set up to buy the 21 inch OEM wheels , found a great deal on them $600.00 shipped for the set of 4 . I was thinking whats wrong with this picture.
Then I went looking for Tires .
All I found was the Pirelli's . And the cost was $2,084 .00 Plus $60.00 shipping cost . Sorry I said no way I am paying $2,100 for a set of tires that only last around 20,000 miles..
So I went down to the 20 inch wheels & tires , Found a sweet deal , all 4 wheels , with tires mounting & balanced & shipped for $1,790...
That sounds a lot better investment to me ..
Hope you can find a good deal .