Driven from Detroit to Charleston, sc (or vice-versa) about 6 times. 3 in the MS3, 2 in a liberty, and 1 in a Malibu. All except the trip in the Malibu were driving solo. Max of 16hrs, min somewhere around 13.5hrs. The trip in the Malibu, I stopped in KY and bought my SRT4.
Was passenger on a trip from Lansing to Portland. Can't remember how long it took (2 days I think); I slept most of the time (spent the week prior pulling all nighters 3 out of 5 days). We weren't planning to stop for the night, but we had some trailer issues and didn’t want to risk it. Definitely not comfortable trying to sleep in a conversion van with 5 other people at a rest stop.
Passenger from Lansing to auburn, AL (14hrs I think). On the return trip, someone put premium in the diesel truck...didn't make it more than .5 mile from the gas station. Stupid mistake due to exhaustion.