Booster car seats checked for fit in a specific car model

Which booster car seats have been checked to fit a particular car model?

Diono Radian 3RXT: The video reports successful three-across use in a Tesla Model Y and enough narrowness for two seats plus a tightly fitting passenger. Britax Skyline 2-Stage Belt-Positioning Booster Car Seat: A forum user reported that the Skyline struck the fixed rear head restraint in a Civic Sport Hatch, leaving a gap behind the booster; Britax reportedly advised that this installation was unacceptable. Diono Monterey 2XT Latch: A real owner reports that the Monterey 2XT would not fit a Porsche 997 GTS because the rear of its base was much too wide.

ProductWhyCar model fitChild weight rangeSeat weight
1. Diono Radian 3RXT sold by anbbaby.comThe video reports successful three-across use in a Tesla Model Y and enough narrowness for two seats plus a tightly fitting passenger.The video reports successful three-across use in a Tesla Model Y and enough narrowness for two seats plus a tightly fitting passenger. reviewThe store lists booster use for children weighing 40–120 lb (18–54 kg). guideThe seat weighs 28.1 lb (12.76 kg). guide
2. Britax Skyline 2-Stage Belt-Positioning Booster Car Seat sold by anbbaby.comA forum user reported that the Skyline struck the fixed rear head restraint in a Civic Sport Hatch, leaving a gap behind the booster; Britax reportedly advised that this installation was unacceptable.A forum user reported that the Skyline struck the fixed rear head restraint in a Civic Sport Hatch, leaving a gap behind the booster; Britax reportedly advised that this installation was unacceptable. reviewHigh-back mode is for children weighing 40–120 lb and measuring 44–63 inches; backless mode is for 48–120 lb and 46–63 inches. guideThe specialist review measured the Skyline at 10.9 lb in high-back mode and 6.2 lb backless. It measured 19 inches across the back, 19.5 inches across the installed cup holders and 16.5 inches at the armrests. review
3. Diono Monterey 2XT Latch sold by anbbaby.comA real owner reports that the Monterey 2XT would not fit a Porsche 997 GTS because the rear of its base was much too wide.A real owner reports that the Monterey 2XT would not fit a Porsche 997 GTS because the rear of its base was much too wide. reviewThe stated child-weight range is 40–120 lb (18–54 kg). listingThe sources disagree on seat weight: the store lists 14.3 lb; Consumer Reports lists 15 lb in high-back mode and 6 lb in backless mode. listing

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Written 2026-10-20T19:12:55.739Z.

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