Safety 1st Summit Wagon Stroller
Check head control and independent sitting for wagon-seat use; the separate infant-seat setup uses only listed compatible Safety 1st/Cosco seats.

Pros / Cons
Pros
- Two built-in harnessed seats let eligible children ride together in the wagon.
- Included adapters fit specified Safety 1st/Cosco infant seats, giving a separate option for a younger passenger.
Cons
- Wagon-seat use requires independent head control and sitting; this is not a newborn-ready seat.
- The infant seat is sold separately, and the whole seating area is limited to 110 lb (49.9 kg).
Product Facts
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Safety 1st Summit CV450 is a two-seat wagon for families who want children to ride together, with a separate infant-seat adapter option for listed models. Wagon-seat use requires independent head control and sitting. The exact CV450 manual gives eligibility as under 55 lb or under 42 in and caps total seating-area load at 110 lb; each built-in seat has a 3-point harness. The adapters are included, but the infant seat is not. They fit only listed compatible Safety 1st and Cosco models; when one is installed, use the child tray and secure the infant with that seat’s harness. This is a separate baby setup, while the wagon seats are not a newborn option. Check the exact seat list and rider limits before choosing this layout. Compare other models in our stroller wagon shortlist.