I don't know but I can say that I hit it so damn hard that nothing had a chance. Honestly, it is amazing that it can be repaired for roughly $600 in parts and just the front clip. I trashed an edge chassis 12 years ago and it required a completely new chassis and IIRC that was $3k in parts then.
When I hit the rock, the sled stopped behind it. I hit the bars and folded them forward. I laid in the snow for a couple minutes to shake off the pain. I can only imagine how bad it would have been without my Tek vest and knee braces.