This was my second attempt at renting from Sixt and I can officially say that experiment is over. Unlike other rental places where a mid size is a mid size, Sixt will advertise a class and then uncharge you for any other vehicle in the same class. So beware, and I think that is false advertising. Needless to say, I went to Avis across the street and got exactly what they advertised, with a sweet little upgrade for the same price. I rented from Sixt at DFW and the experience was good, too good to last I guess. So this customer is done. I don't like businesses that can't just be honest.