DS is 27 months but is big for his age and weighs about 2 and a half stone - which is 35 kgs - the minimum weight for a bigger car seat. But the Halfords website says he should be 3.5-4 years old...??
When do/did you move your DCs up from a baby seat? He is getting very squashed in his Maxicosi Priori.
Also any recommendations for which to buy??