my brother in law has asked me if I can look after his 2 year old daughter on Sunday. I need to buy a child car seat but I don't know which one would be suitable.
if you are only looking after for the day, a carseat sounds like a big extravagance. It will probably be at least £120 for the cheapest one.
If you are getting one, personally i would go for britax, but that's just preference. Get one that goes up in weight or size too because if you have her ahgain you'd probably like to still use it