I've only driven a car equipped with S rated BFG T/As once. It was terrifying.
I sourced a set of new Z rated Yoko AVS intermediates for my car last year. These are recent production and were stored properly (sealed up) before use.
Their performance is nothing short of sensational at triple digit speeds.
When it comes time to replace, I will try the Michelin TB-5R next. I would like to get a tire with more recent development and technology on the car.