J.M.
I would put the rear facing child in the center of the car, and the two forward facers on either side. I must let you know though, I just had my Jetta inspected by a police officer with car seat training, and the car seats must not touch one another. It is considered unsafe if they do and that if in an accident the impact will be greater amongst the carseats being that they are touching. I only know this because I had my rear and forward facer sitting side by side and they told me I had to move the seats, that I could even be ticketed. SO if the seats won't fit any which way you might have to say good bye to one of the kids. Good luck.