Be very aware when you get excited about this upcoming C4 that the super low, low price estimate is predicated entirely on an anticipated part 23 rewrite that will make certification much easier like it is for the LSAs. You will notice that all the new planes that people are promising are sort of on hold right now. They are waiting for the Feds. If the rewrite doesn't happen, this plane will cost the same as a 172. There is no secret sauce in aviation.