One base. Four ways to ride. BASE next™ from Nuna offers ultimate adaptability as the foundation of a modular system compatible with CARI next, a carry cot car seat; PIPA next, a versatile infant car seat; ARRA next, a lie-flat infant car seat; and TODL next, a sleek seat that grows with baby from newborn to toddler (all sold separately). The BASE next provides simple and secure installation...