Narrow car seats

[melrose7]

I have a different amount of kids each day in my in home daycare but for the most part they car share car seats as long as I have 1 infant seat and 4 FF seats or 3 FF and 1 booster. I had bought a radian 100 last year since my scerena expires this year and thought that would help with getting 3 in the back of a grand caravan. I didn't realize the 100 is wider than the radian XT I have and now I am made I bought that model. I might try to sell it if I can get a more narrow seat but they don't make that model anymore. Is the XTSL the same thing? What would be a good fit? Besides the XT I have a Harmony and a my ride. The my ride I can return since it is still in the box.

[Joolsplus2]

I think all Radians are the same shell, and then with or without headwings, which are interior. Or did you try it and measure them side by side and the new one's really wider...?