Rearfacing group 1 car seats in UK?

[firstLO]

I'm currently trying to decide which group 1 car seat to get for my daughter and have been reading it's safer to keep them rear facing until 4 years. Has anyone bought one of these (in the UK)? If so which one do you have and where did you buy it? It seems I would have to get it online as nowhere seems to sell them which is annoying as I would like to look at them first before making a decision.
Any info/recommendations would be appreciated.

Thanks