Longest drive I ever took was from Michigan to Florida, but we stopped in a hotel over night. The longest non stop drive was about 14 hours driving from the south of Norway to Oppdal, near the center.
I took bus trip to Kissimme Fl (from Memphis) when I was in 9th grade. The bus kept breakin down so it took us like 30 hrs or something and we had two too many people so it was WAY crowded and stinky and whiney lol The most fun I think I ever had!