Hi Emma: I’ve put two harps in a station wagon many times. I put the first one in the usual way, with the discs up. Then, VERY carefully, I put the second one in with the discs down, and pad heavily between the two so they are not bumping and the discs are protected. It’s not ideal, but I’ve been very careful and used a lot of padding and never had any problems. The much easier way would be to rent a minivan. Depending on the seating configuration you can usually stow or remove seats to have enough room to load two harps on their column so they don’t touch at all. You still need a lot of padding and ways to secure them so they stay upright and don’t bump each other. Hope this helps!