Investing in a travel system means choosing a suitable car seat for your newborn, either Group 0 (birth to 11 months) or Group 0+ (birth to 15 months). Car seats are categorized by age groups, with the main ranges being from birth, 9-12 months, and 4 years. Consider both the stage and weight of the car seat when choosing one that can be used on the pushchair chassis. Make the safest and most convenient choice for your little one's travels.