Hi all, i am totally new to car rental programs and am in dire need of some help. My family of 4 adults and 1 toddler will be traveling to Paris, Athens, UAE and Turkey next month. As you can imagine, that is quite a bit of luggage and a stroller. I do have Sixt platinum from FF match from another chain that I have status. I believe that I would just be able to choose any vehicle from a certain parking lot rather than what I booked? I am wondering if someone can confirm this and also help me out by telling me what car class I would need to rent to maybe take advantage of this and score a free upgrade to an SUV/minivan?