[Ryephile]

Hoosier R7 is a treadwear of 40. That's the typical track day tire.

I used to run R888's as a rain tire [they're not good in the rain, BTW]. Their treadwear rating is 100. They're best as a street tire, IMO. Other "R-compound" tires in the 100 treadwear range are the Toyo RA1, Nitto NT01, and Maxxis RC-1. They have just enough tread to not be a good idea to run on the street, though they're perfectly legal.

The current trend for extreme summer tires is to fake a UTQG of 200-ish to sneak into street tire auto-x classification. Tires like the RE71R and Rival S 1.5 fall into that category, as their real life on-track treadwear is much less than their "200" implies.

Just looking at the Goodyear S3's 220 treadwear and making a blanket assumption just isn't logical these days within the context of current "cheater" auto-x tires. Not to discount your friend's dad, but things do change quickly in the tire world.