On Sixt's website it lists the minimum age requirement for PDAR (BMW 520/523 or similar) in Germany as 21, but a CSR told me over the phone that the minimum age requirement is 25. I am 23, so this is of concern to me. Should I just go ahead and book the car since it says 21 on the website? I would hate to get to Germany (FRA) and be told "Nope, sorry, you are too young."