For old wagons the front 2 rows of seats were always the same dimensions as the car they were based off. The differences were always purely in the very back sec

For old wagons the front 2 rows of seats were always the same dimensions as the car they were based off. The differences were always purely in the very back section of the car behind the back seats onwards. In fact if you looked carefully you could pretty much always see the seem in these cars from where the top of the rear window would have been around to the floor as they were created by welding an extra section on the rear. So basically think of the largest old sedan you've ever been in. It's that much room.