my younger daughter is almost six, and is about 37 pounds and 43 inches. She is rear-facing in a Radian XTSL, with the added pad underneath to be more upright, in our 2012 Toyota Sienna. I intend to keep her rear-facing until she hits the limit of 45 pounds. I got the Radian when she was a baby, so it is about six years old now but won't expire for another two years or so.
Sometimes on longer drives, she says her back hurts or her head hurts. I wonder if there is a newer seat on the market that would be more comfortable? The Radian is rather austere when it comes to padding and angles of the seat to the seatback. I definitely want something that will rear-face to at least 45 pounds.
In our other car, a 2004 Honda Accord, she is rear-facing in a Britax Marathon 70-G3, which has a rear-facing limit of 40 pounds. She doesn't complain in there but she is never in there for more than 30 minutes at most. She is a few pounds from going forward facing in that seat, so I don't want to move it to the Sienna.
What is the most comfy extended rear-facing seat on the market now? Are there any that go higher than 45 pounds rear-facing?