I, my wife, and my 6'4" stepson are traveling to Germany, Austria, and the Czech Republic in a few weeks. We're renting the car in Munich and returning to Berlin. I presently have a SEAT IBEZA ST reserved with Europcar, but am starting to second-guess that choice given my stepson's height. So, you're me ... what would you do? For what it's worth, I'm Hertz Five-Star, Avis First, Enterprise, and Sixt Platinum. Thanks in advance.