Babies up to two years of age must be secured in a baby car seat that is mounted in the opposite direction of travel. These baby seats should ideally be placed on the back seat. Older children up to the age of 12 or a height of 150 centimeters must also sit in a child's car seat. The safest place to sit is in the middle of the back seat. This position offers the best protection against vehicle parts penetrating the car in the event of an accident. The second safest place is the back seat on the passenger side.