Today I thought I was the luckiest girl around, my hubby bought me a Nissan Micra Convertible to atone my mid life crisis....all was going swimmingly until I went to put my sons forward facing Britax Car seat in the back and its about 6 inches too deep (the height and width is fine) meaning he can only be placed in the front with the airbag off as I cant put the front seat back. Basically I need a safe, 5 point harness without all the added L shaped plastic at the back. My boy is 1 yr old. Can anyone help? Have tried to search the web, but they all talk about width not depth. thanks