Not relevant. I read somewhere that the minimum is counted from the dealers' optional package.. So say with sportivo based line model, 16s, dealers offer 18s with extra $$. Then 18 it is. That us correct however it must be stated on the placard. You can go 10mm over the largest dealer fitted options but it must be stated what the options are on the placard. Eg the Is250 has stock 16s but on the placard it stated 16, 17, and 18s are fittable to the car. I don't have an Ateva so i don't don't know what the placard reads but on the sportivo it only has 17s stated. I doubt it states 16, 17 ad 18s on the Ateva.