Ahhh Rim Size.... Make em all run 15's -
But seriously, I think you're getting back in the problem zone to start defining 'cheap' vs 'expensive' rubber.
I run 15's, my choice, I could change and possibly gain some, but I choose not to for the look of the car. I think that type of thinking would go for many owners.
Some run 17's and other sizes, and many run very slick street 'R' class compounds. That's life.....
I think I have an idea for a source of tyre brands that are 'acceptable' that comes from an FIA sanctioned event that includes classics. Let me dig it up and send to you Jason by email.
Cameron