OMG that's horrible. We were allowed to roam free in the very back of my family's Ford Grand Torino Station Wagon... it was a fucking tank and it was great for road trips. Lay out a double layer of sleeping bags in the "back back", add some more blankets and some pillows and the kids will sleep through most of the car ride. It was great.
Disclaimer: I am only responsible for what I say, not what you choose to understand.