I need to fit a baby seat and 2 x 5 point harness seats across the back seat of a Volvo Xc90. The problem I have at the moment is the central seatbelt is comparatively short (and no isofix) and I can't find a car seat which fits, booster style seats seem fine but my DD1 is only just 15kg and short so I'm nervous about moving her out of a 5 point harness too soon. Does anyone have any suggestions for a seat which will fit with a short seatbelt?