OK...
The story so far...
We've had it confirmed that we are not allowed to use our Britax Frontier 85 in the UK
so now I have to decide what to replace it with!
Since there are no 5 point harness seats for stage 2/3 then I think I have narrowed the search to BritaxKidfix SICT or Kiddy CruiserFix Pro.
Really 
I can't decide...what are the pros con, does anyone know what Which? has said??
Any help or info greatfully appreciated
Chilled