Well, I left Fynlie's car seat in MamaJan's car when she dropped Fynlie off but I forgot to get her other car seat out of Ryan's truck before he left the next morning. So, Fynlie had to use a booster car seat to get to MamaJan's the next day. She did not stop smiling for one second in that 13 minute drive. She kept talking about how big she was and how much she loved riding like this.