Graco Grows4Me 4 in 1 Car Seat, Infant to Toddler Car Seat with 4 Modes – Link

Amazon has this currently marked down to only $159.98 w/free shipping!

• 4 seats in 1: 4-in-1 seat gives you 10 years of use–it seamlessly transforms from rear-facing harness (5-40 lb), two forward-facing harness (22-65 lb), to a highback booster (40-100 lb), to a backless booster (40-110 lb).
• Simply Safe Adjust Harness System: Adjust the height of your harness and headrest to 10 positions in one motion to ensure that your child is always properly secured.Do not use bleach
• 10-position Headrest: One-hand, 10-position adjustable headrest is easy to use and grows to properly fit your growing child.
• 6-position Recline: Helps keep your growing child comfy on your many journeys together.
• LATCH Equipped: For an easy installation.
• Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that helps protect your child in front, side, rear & rollover crashes; additional testing based on the New Car Assessment Program and for extreme car interior temperatures