Safety 1st Grow and Go 3-in-1 Convertible Car Seat The Safety 1st Grow and Go 3-in-1 Convertible Car Seat ($160) can last your child from birth until they're 100 pounds! This car seat offers impressive side-impact protection and the brand's QuickFit Harness System secures your child in place properly without much fuss. Image Source: amazon.com Safety 1st Grow and Go 3-in-1 Convertible Car Seat $160 from amazon.com Buy Now