Car seats like this will allow you to remove the 5 point harness system so you can use the cars safety belt instead.
This will go over your childs shoulder with adjustments so it is at the right height and then buckle into the seat of your car.
Also, if you want your car seat to last for a long time, check the height and weight limits.
Those that have bigger maximums will last you a lot longer.
Side impact protection became important to me after I was in a side auto collision.
Luckily, my baby was not with me that day, but it got me thinking about it.
Basic car seats have more shallow shells without a whole lot of side protection.
However, more and more car seat manufacturers are making deeper shells and bigger wings on the sides of car seats to help protect in the event of a side auto collision.
Sometimes these can inhibit how much your child gets to see out of the window, but when it comes to safety, that has never bothered me.
Look for a car seat that gives you removable infant headrests as well as snugglers, and one that can be adjusted at different angles.
I liked finding car seats that had a few different positions of recline.
This makes it much more comfortable for your baby to nap in while you're driving.
http://www.youtube.com/watch?v=B89H7nOZgVc
Though it is not a necessary feature, having a cup holder can be convenient as your child gets older.
Others can also be folded for a more compact storage and travel option.
http://toptenkids.hubpages.com/hub/Top-Toddler-Baby-Rear-Forward-Facing-Convertible-Car-Seat
