Back seat in Phaeton (space conditions)

After looking for a suitable Phaeton for me for several months, I found it. Equipment fits, motorization fits, mileage and age everything great. V6 TDI from 2009 with 100,000 km. So I grabbed the family for pro-owned. When we then took place on the back seat I was a bit scared. I had to find with my 182 cm already serious problems a pleasant sitting position, without coming with the head to the roof sky. On the middle place under the lighting unit it was even impossible. So I could not convince my family (woman and 2 small children) from the car. I wonder that I could not find this “problem” here in the forum yet. Does no one of you take persons of 182 cm and larger on the back seat with me, or did I catch an unfavorable equipment mix (premium seat, solar sliding roof,…)? I really don’t know any more, so I unfortunately never get the project Phaeton with my wife. Is the Phaeton really helpful to get the wrong comments for the car?