I came across this on Facebook. It advocates rear facing car seats as long as possible, but there was an interesting passage about exiting the vehicle with a potentially injured infant or toddler.
http://carseatnanny.blogspot.com/2012/01/is-rear-facing-safer-when-youre-rear.html?m=1
Infant and toddler seats are almost always anchored to the car's LATCH (Lower Anchors and Tethers for CHildren) attachments with seatbelt material straps. It's faster to simply cut the straps then try to unclip them with panicked kid in the seat. Besides, car seats are only good for one injury accident. There's no point in trying to preserve them after impact.
http://carseatnanny.blogspot.com/2012/01/is-rear-facing-safer-when-youre-rear.html?m=1
When you're involved in a crash, it is usually safest to leave the child buckled in their seat. The carseat acts like a built in body board, and the paramedics should try to remove the entire seat with child still in it. However, sometimes you need to remove the child. Rachel commented that she took the boys out of their seats for a few reasons.
"There was gas on the ground from another vehicle and they were terrified. They were screaming and trying to unbuckle and get out and I just... I couldn't leave them there. I couldn't leave T2 pinned to his seat with a hunk of metal in his face. Also we couldn't get the big boys seats out, I tried for a few seconds but gave up."
Infant and toddler seats are almost always anchored to the car's LATCH (Lower Anchors and Tethers for CHildren) attachments with seatbelt material straps. It's faster to simply cut the straps then try to unclip them with panicked kid in the seat. Besides, car seats are only good for one injury accident. There's no point in trying to preserve them after impact.