A couple of years ago new legislation came in called i-Size. It runs parallel to existing car seat regulation but will replace it at some point in the future. i-Size has 5 key features:
The next question is how tall is your child? i-Size car seats go on height not weight. You have to keep babies rear facing until 15mths under the new legislation but it is actually safest to keep toddlers rear facing until they are around 4yrs old. The range of toddler car seats available from Babythingz is really thorough with lots of options for traditional and i-size seats, both front facing and extended rear facing.
Then look for features which will make your child comfortable such as a reclining seat that you can adjust and adjustable head supports which allow the car seat to grow with your baby. Also consider a car seat cover which will protect them from weather, noise and distractions, you can read more here.
And lastly ease of use - you want a seat which is easy to install and if required move from car to car. Car seat bases which stay in the car and allow the seat to snap in and out quickly are a good idea if you are constantly switching the seat between two cars.
We decided to keep Little I rear facing for a long as possible. It seemed sensible as it is the safest option. We've been really pleased with our i-Size Maxi-Cosi 2way Pearl which stays rear facing until 105cm which is roughly 4yrs old. It is very easy to use, has recline function and adjustable head rest. We really couldn't recommend the seat highly enough.