A couple years ago, I rented an '18 GT Premium PP1 auto with Recaros from Hertz for a 3500 mile road trip. I ended up buying an exactly optioned one eight months later. I worried for nothing about the comfort of the Recaros, even during a long day of driving. The Brembo brakes are amazing. Advertised 460hp, with 420lb torque on 93, that's a very good reason they put Michelin 4S tires on these. The Sport+ "smile switch" is fun around town with the harder up and downshifts.
These particular Hertz Mustangs were special ordered...I have the window sticker. Considering when I was looking at these, they must have ordered very few of them. Even with a few issues, Hertz related - not Ford - I think I got lucky with the one I got. I think Hertz ordered less for '19, and I haven't seen any '20s.