No isofix in your car cosattorsquos hold belted base is a fab option fastening into your car with your 3 point seatbelt just pop your hold car seat on and off cosatto hold belted in car base no isofix anchors in your car our belted in car base is a great alternative the cosatto hold belted base fastens into your car with a seatbelt once in place you can keep it in situ in order to pop your hold 0 car seat on and off it when yoursquore out and about our hold belted bases fit most car