Hi,I just found a really good booster car seat in a magazine I get. It has 8 inch deep sides,attaches to car seat,has a sheepskin liner that can be removed and washed. Your little one can sit up high enough to look out the window. You can find this online or get a catalog ordered. It is $19.98 plus shipping. Name of site is
www.harrietcarter.com
Hope this helps. I'm ordering one for my girl.