I spent a couple of frustrating hours at bbb and bru today. I need a convertible seat for an infant that will hopefully last rf for awhile. My problem is I have a very small back seat. I drive a 94 4Runner. Its not the width we are having problems with but the space behind the driver seat. I have our 4yr old (38" 38lbs) in a Nautilus in the center. Need to leave the seat behind passenger open since dh is tall (6'4") and has to have the seat all the way back. Since I am so short(5'1") I don't want to try and struggle to get an infant in the center seat, (I would have to set baby on seat and climb in) The only seat I found that might work is the Britax Roundabout 55. Is it an ok seat for an infant? Also can it touch the headrest(not pushed against just barely touching)? Does it have to be tethered? Car is to old for latch so will be a seat belt instal. It seemed like I could get a decent instal if I had more time that bru really wants to give you to play with a seat. I'm guessing it would need a noodle or something to make it reclined enough (their parking lot is not level so its hard to tell). We are due in sept but dr thinks she is coming early so need to be ready. Budget wise I need to stay under $200. I tried the Myride, truefit, and size4me all with no luck. Should I go with the roudabout55 or is there another seat I could look at. Also bearing in mind I have small kids (4yr old ds still fit in roundabout 55 in bru) but when this seat is outgrown dh will insist on turning baby ff.