There are certain variables that can influence your decision as to the best position in the car, depending on the type of seat, the direction it will face and whether we have someone else to help monitor the child.
In principal the best seat to place the child seat on is across the middle of the backseats. This is the best position to protect against lateral impact and makes it easier to attend to the child from the driving seat. Nonetheless sometimes things make it necessary to place the seat somewhere else. If we are travelling alone and wish to have more control over the child we can place in on the front passenger seat facing backwards, having of course, deactivated the airbag.
The other exception is when the child is bigger and is able to use the car seatbelt or the headrest. Sometimes the middle seat doesn’t have a headrest and only has two fixing points for the seatbelt. It is then better to locate the SRI on one of the side seats, preferably on the right so that it is closer to the sidewalk and further away from the traffic, it is also easier to see the child.
And lastly, if we have an ISOFIX seat, and any of seats in your car support this system, that is where it should be placed, ensuring that the person most important to us is properly protected.