At what age did you stop using car seats and just move to booster seats (or what height / weight if that is more relevant)
My DS is nearly 4 but tall and big for his age he's really outgrown the car seat he's in. Given I drive a Mini, I don't have too many other choices, and am thinking of just putting him in a booster seat as he would be more comfortable...
Can any one link to the correct advice on this please?