Others can comment on the drive and scenery, but my best advice for you would be to spend one night at one of the airport hotels at FRA before commencing this journey. TATL flights in Y that get in early morning are exhausting. I've been doing it forever and still the drive to my house is tiring. You will be here six weeks - you and your family will enjoy the drive so much more after a day with sleep, rather than fighting to stay awake for it. My two cents