Aww dont worry about it! I posted the same on AB last year. I too have a 3 door car, and though Caitlin always been ave size with short legs I understand the urge to get them forward facing, it is easier to get them in and out.
I had her in the front (no passenger airbag) to make it that little bit easier, so poor OH had to ride about in the back for 9 months lol. x