Here's the Britax Parkway: http://www.britaxusa.net/products/detail_parkway.aspx
It says that the SIPS has been confirmed through rigorous testing to protect better in side-impact collisions.
Also, will your headrest provide head and spine support if your child falls asleep? Ds is in a Wizard part-time and a Parkway part-time. The Parkway holds him up straight when he sleeps (with his head slightly to the side), though he does occasionally slump forward (which is why I prefer the Wizard still).
It says that the SIPS has been confirmed through rigorous testing to protect better in side-impact collisions.
Also, will your headrest provide head and spine support if your child falls asleep? Ds is in a Wizard part-time and a Parkway part-time. The Parkway holds him up straight when he sleeps (with his head slightly to the side), though he does occasionally slump forward (which is why I prefer the Wizard still).
