Mothercare advised buying the britax dualfix 0-4yrs, I had concerns that the car seat didn't come out of the car and is permenatly attached, she dismissed this and said we would save money in the long run.
John lewis recommended maxi cosi a baby car seat and then the 0-4years(but she said its still worth getting the baby one as it has a handle and is cosier and safer for baby). Also both these fit the same isofix.
Can anyone give advice?