Just thought I'd post in case anyone was wondering, since I wasn't sure myself that the RA80 I just bought would fit in my 08 Dodge Caliber. It fits! Probably only because there is never anyone riding with me, so no need to worry about a front passenger. The front passenger seat is as far forward and as far upright as it goes and the Radian fits just fine with inches in between the two. It does not seem as tight as my TF - which does not budge a bit, but when I test it with my non-dominant hand the way I have read it explained here, it is fine. It doesn't move at all really, I think I just need to get used to the Radian having a much smaller base than the TF. We don't actual need to start using it for a bit, since DS is only 29lbs, but it is nice to have it for a back up to swap out so I can clean the TF more often now.