Top Five Car Seats: Chicco KeyFit 30

Chicco KeyFit 30
Cost: $179.99 at target.com
Just the facts: Fits infants 4-30 lbs.; lined with EPS foam; includes newborn insert and leveling foot for uneven backseats. Weighs 9 lbs.
Worth noting: Only compatible with the Chicco Cortina stroller and some Zooper and Joovy stroller models. Chicco also sells another version of the KeyFit that only fits infants up to 22 lbs.
What the experts say: The KeyFit is an expert favorite -- Consumer Reports named the KeyFit their "best bet," giving it the highest score in their safety report and calling it "excellent for ease of use and fit to vehicle." Baby gear advice book Baby Bargains (7th edition) gives the KeyFit an "A," lauding its easy car installation. And the National Highway Transportation Safety Agency also gives the KeyFit four stars for ease of use.
Raves: Parents writing reviews online liked that the seat can be used with infants as small as four pounds, which is great for bringing preemie babies home. They also agreed with the experts that the seat is a breeze to install. The high quality fabric was also noted, with one parent saying "after a year of use it still looks new."
Rants: Users say this seat doesn't fit a lot of shopping carts and some found it can get a little warm on hot days.