just take zerbib's rate (35% discount). then you also know fullprice and just need to subtract 40% because that's exactly what hons get. I started sixt gold with 25% got plat then with 35 e.g. zerbib and hon will bring you a bit more down.
http://www.miles-and-more.com/online...nodeid=1310782


BTW it's interesting that sixt reduced their weekend-rate PDMR and bigger sizes that much. Seems as if they have problems to rent out these cars on weekends what is finally not that surprising.