Go to KYLEDAVIDMILLER.ORG to see why you and all other parents out there, need to keep your child in a 5point harness. In a car crash in a 5point harness the crash forces are evenly distributed through out the childs body. in a seat belt crash, the seat belt could dig in to your childs body and cause internal bleeding and your child could die befor making it to hospital. If your child is not sitting right in the booster, could go flying out under the seat belt. Check out car-seat.org there are car seat certifed techs, that will help you decided what car seat would work best for your car, budget and child. the best car seat is one used right every single time and installed right. here is my list of car seats......
1 Graco Nautilus $160 harness 65lb after harness, hbb, when out grow hbb use as low booster. harness and hbb good for 6yrs, low booster good for 9years. It now comes in a girl pink color and not boring gray.
2 True Fit $190 harness only 65lb expires in 6years. Easy to install with seat, it has seat belt locks offs. No re-threading harness, pull out yellow knobs by the head, pull up the knobs untill harness is at or just above your childs shoulder.
3 Britax Frontier hanress 65lbs, after harness is a hbb. seat expires 6years.
4 britax Regent $280 harness only this is a very big seat. if installing with seatbelt, you will need to install using long belt path. when child his 40lbs you have to use seatbelt and not LATCH. Also Tether must be used when child hits 50lb, you can use tether below 50lbs. If you do not tether the seat when your child is at 50lbs+ britax is not at fault if your child is hurt in an accident because you did not install your seat correctly.
5 Britax Mathron $280 harness only 65lbs. very easy seat to install with LATCH insall or Seatbelt. expires in 6years
6 britax boulvard $309 harness only 65lbs. expies in 6years
7 Reacro Signo $290 harness only 70lb not sure when it expires, check your manual
8 Radian 80 or 65 $250 and $200 very very slim seat, abel to do three across in any car with these seats. expires in 6years Harness only to 80lbs or 65lbs I would suggest the radian 65 because the harness slots are the same for both seats. there will be a new Radian seat coming out in January for about $300.
In my opinion I would suggest True fit or Graco nautilus. The nautilus is an easy install and budget friendly. I would go with the true fit because it is a roomier seat. What ever you do, do not put your child in a booster at 3years old, dont listen to your dr that says to booster at 40lbs, they dont know, go read the American Academy of Pediatrics (aap.org) they suggest to harness as long as possible. you did not carry your child for 10m and go through labor to lose your child at a young age in a booster seat.