The concord ultimax 3 combines versatility with safety on the road the new generation of the concord ultimax 3 is equipped with an isofix platform for simple secure fastening inside a vehicle the seat provides optimal safety for children from birth until about four years old it is a baby car seat and group i child seat in one for babies and small children up to about 18 months old the seat can be used in the rearfacing position when the child gets older the seat is simply turned around