I have put my bikes in our mid-size sedan's trunk with the seats down. The seats fold down, so its a large opening, not some small pass thru.
63-65cm 700c bikes are a tight fit. I remove the front wheel and drop the seatpost to get them to fit.
With racks, you may need to remove the front one? or loosen the handlebars so they lie in line with the bike.
At worst, bring some towles and a bungee cord and have a bit of bike hang out the back of the car.