Honestly, have had terrible luck with SIXT despite having Platinum
MUC
Booked STAR (Audi A3 Cab)
Received Audi A5 Sportsback TDI (so I guess PSAR?)
Munich Frottmaning
Booked LSAR (440i Coupe)
Received 530i Touring
Honestly felt that both were quite downgrades given status. Several times they refused to allow car switches or upgrades despite the presence of cars available. Given these were my first two times, I don't think I'll be renting again.