You should get a rear facing car seat. This ensures maximum protection from sides and front crashes. These car seats are for infants only and not meant for older kids. They are generally very light and versatile. Remember to switch to bigger seats when your child hits their first birthday!
Although the new guidelines seem quite different from previous AAP car seat guidelines, which for example, recommended rear-facing car seats for infants until they had reached at least 1 year of age and weighed at least 20 pounds, it is important to realize that was a minimum recommendation.
The Chicco KeyFit 30 is one of the most recommended car seats for infants — and it's the one that I chose for my baby.
Age/Weight Limits: Birth 30 lbs. or 30"
Best for: Anyone concerned about safety, considering Chicco has one of the best safety records in the car seat industry. It's also good for bigger-than-average infants, as it has a nice weight span for an infant seat.
Not best for: Those using an incompatible stroller — although most strollers have a car seat attachment for Chicco.
Key features: One of my personal favorite aspects of the Chicco KeyFit 30 is that it's incredibly easy to install and use — no difficult buckles or tricky installation issues. It's also a manageable weight to carry without feeling flimsy (9 lbs.), which is a huge issue for parents, because you're always carrying the car seat in and out of the car.
Chicco stroller + car seat travel system combos run from $299.99 to $349.99.
Buy from Babies R Us, $170
Professor Michael Griffin, from the Institute of Sound and Vibration Research at the University of Southampton, said that more research in this area was clearly needed: “We may well be able to use the motion simulator to investigate the potential benefits and limitations of various designs of infant car seats. What we find could help inform a revision of current recommendations for testing infants’ suitability for travel in an infant car seat, and also have implications for the design of car seats for newborn infants.”
"What we find could help inform a revision of current recommendations for testing infants' suitability for travel in an infant car seat, and also have implications for the design of car seats for newborn infants."