I have a real problem with this. Even the maxi rider II doesn't allow for children DS's size to use the inbuilt harness at his age. He is too tall for the inbuilt harness' in every car seat we have looked at so we have had no alternative than to use a booster with a harness. It really irritates me as it IS just as dangerous to use a seat that is unsuitable as to use no seat at all. I left DS in his car seat as long as I possibly could by the time we moved him to his booster (its high back btw) his shoulders were about an inch and a half taller than the last outlet for the inbuilt harness.

What I want to see are boosters with hooks (I know some are available) and in built harness for older children.

(sorry mini vent here)

I really think they need to publicise this better, and get the car seat industry to lift their game to fit requirements. ATM a lot of our car seats wouldn't meet a lot of international safety standards and thats pretty bad.