We love the Britax first class SI carseat. It is suitable from birth to 4 years old, which was very handy as despite going up to 12 months our infant carrier seat made by another company was outgrown by our daughter, lengthwise, at 4 months old.
The first class seems to suit most cars, and was also highly recommended by the road safety officer at our local police station. We currently use it rear facing for our daughter and even on 2 hour trips she seems comfortable and falls asleep in it.
Highly recommended seat!
mayfairmo
Bonniesmum