I love the weight limits on the Britax, but wish they weren't the only ones with the higher weight limits for rear-facing.
Good news! There are LOTS of convertible car seats with higher limits for rear-facing. In fact, there are several that are significantly less expensive than the Britax convertibles, with high rear-facing weight limits (40lbs) and forward-facing weight limits. Nearly all convertibles on the market in the US now have AT LEAST a 35lbs rear-facing weight limit and that is more than plenty to get most kids to between the ages of 2 and 3.
I'd like to add to this overall discussion of the updated guidelines by saying that NHTSA also updated their guidelines. Their updated site is nice and clear as to what is suggested for each age range (just click on the age you want to see):
http://www.nhtsa.gov/Safety/CPS
And here is a great PDF that can be printed, if you want to share this info with anyone:
http://www.nhtsa.gov/DOT/NHTSA/Traffic Injury Control/Articles/Associated Files/4StepsFlyer.pdf
One thing to note about the AAP recommendations, they're saying they'd like everyone to get to AT LEAST 2 if possible. If you have a convertible seat and your child is rear-facing and has not yet met the height or weight limits of the seat they should remain rear-facing for optimum safety.
I can personnally attest that in a moderately priced car seat an average sized child CAN rear-face to the age of 3 without any problems. I owned an Evenflo Triumph Advance for my son, which at the time had a 35lbs rear-facing limit and a 50lbs forward-facing limit. He was about 50%ile for weight and 90%ile for height, and we turned him when he reached the weight limit at around age 3. That car seat at the time we bought it was $129, not a crazy expensive one. He never once complained about his legs, the Triumph Advance has lots more leg room than the old style Britax 'big' seats like the Marathon and Boulevard. And, in fact, he would complain about his legs dangling once we did turn him forward-facing.
Does this mean I judge any parent who doesn't make it to 3? Absolutely not. I have a friend whose child hit 30lbs at one year. She kept her child rear-facing for about 6 more months until he hit the 35lbs mark, and then had no choice but to turn him. She could not afford a seat with a higher than 35lbs rear-facing limit, which at the time was a very pricey $300 seat. If that same child were turning one NOW, she would have many more much less expensive options.
I would encourage any parent unsure about the new recommendations to seek the help of an experienced CPST and/or to post at car-seat.org for help. I would encourage parents to do the same if trying to choose a car seat for their child, as there are so many choices, new ones coming on the market all the time, and sadly, too much misinformation on sites like the Dis...which are GREAT for all things Disney...not so much for child passenger safety.
I'm also happy to answer questions here or via PM if anyone has any.
Coleen
CPST