Group 0/1/2/3 Multi group / Every stage car seats
0 - 12 Years - Group 0/1/2/3 allow for the car seat to be used from birth all the way up to 12 years of age as they can grow with the child by removing padding and extending parts to ensure that your child is comfortable and safe.
Like the Group 0+/1 they are likely fixed to a base and unable to be put onto a pram, again though they are an amazing option for a secondary vehicle and are normally amazing value for money as they are the only car seat you’ll need!