Not sure which base is compatible with your baby or toddler car seat? Or already got a base and wondering which toddler seat fits on it? We are here to help! Have a look at our base compatibility overview to find the best fit for your car seat. Go for longevity by re-using your base with a compatible toddler car seat when your child gets older. The overall safety score is made up of the results of crash testing (front crash; side crash) seat design, stability in the car and belt routing. Our crash tests go beyond the legal minimum requirements for UK car seat regulations and are conducted at higher speeds and forces than the regulations require. We feel our tests more accurately reflect what could happen in a real life crash.