I'm pleased with how much easier to the eye the standard cars are with upgraded wheels. I think the higher quality wheels distract from other low points on the cars.
I do, however, find it weird that not all the rims are available on standard cars. I know the BBS RS' and the TE37G2s aren't available, along with a couple of others. I was kind of disappointed with that, the RS is a timeless design that suits a lot of cars