Say what you will about the gas mileage and horse power of old cars, but they had a hell of a lot of space in them. You can't argue against that. Hell, there's a whole elephant getting into this car. It might just be a baby elephant, but those things are still big. They come out bigger than dogs. Let's say you bought an elephant and didn't know a guy with a truck. What else would you do? You'd have to pack it into your car.
I don't think animals like being in cars, if you ask me. They tend to get sick. An elephant is not the size animal you want to get sick around. The re-upholstery costs alone wouldn't make it worth it. That's whether the elephant gets sick in the front end or the back end.