The Falcon wagon I had, could fit 4 road bikes broken down with the wheels off, the hardest part that day was one of the riders is really tall so the frame and seat height took some juggling but we got them all in, and that included having 5 passengers as well. So it can be done. You just need a woman to pack the car for you as we always pack better.
If you don't want any scratches make sure you use something between each frame as well.We used to go to the extremes of wheel bags and drive covers to save getting grease or scruff marks on the interior. Hence why with the new car we have roof racks now.