TULSA, Oklahoma - The Insurance Institute for Highway Safety is out with its list of the best booster seats for keeping children safe inside vehicles. A crash test video they released shows how unrestrained children can become projectiles, even in a low speed collision. 
Researchers say kids between the ages of 4 and 8 are 45 percent less likely to be injured in a child boost seat than in a seat belt alone. The group tested 16 new boost seat models sold this year and rated 13 of them as best bets - the group's highest rating. 

The IIHS recommends children use booster seats until safety belts fit properly, regardless of their age.