Embraer is the "mouse that roared" - the 170 is a market killer, the CRJ -700/900 is going to have a tough go Its basically a mini-777, for 24 million.. Why do you think Lockheed-Martin are wooing them.. That being said - it does haves some wierd engieering in the fly-by-wire system - IE they have a digital - analog hybrid fly by wire system - must be a control system nightmare. The 145 has a belly skid to protect the body tanks - add drag, heavy - wierd engineering oversight ..