As far as the brand-specific designations, I agree with MUG, that they could be designed for a vehicle that’s not technically a sports car, or could be designed for a sports car that’s lighter or heavier than the Z. Brand/model-specific higher-end tires can also have multiple tread compounds across the contact patch, where a ‘generic’ may only have one, maybe 2.
my thought is if it’s specifically designed for a sports car relatively close to the weight of a Z (not an Ariel Atom, for instance) then it should be fine.
