If you are looking to get a care seat, here is a deal to check out. Walmart is offering this Cosco Scenera NEXT Convertible Car Seat for $39 (was $55). They have it in red or blue for this price.
Fits 3 across in the back seat
Rear-facing 5-40 lbs
Forward-facing 22-40 lbs
Side Impact Protection
5-point harness with easy front adjustment
5 harness heights and 3 buckle locations allow for the best fit for growing children
Seat pad is machine washable and dryer safe at a low setting
Removable cup holder is dishwasher safe
Lightweight for carrying through the airport
Airplane ready
LATCH-equipped
Meets or exceeds Federal and ASTM Safety Standards
Also available in printed fabric