Markus Voget wrote:
Extra Aircraft of Germany had an even worse experience some years ago when
their initial customer for the Extra 400 aircraft stalled and crashed on
the first flight away from the factory. The cause was later determined as
"flight in IMC in an unfamiliar aircraft placed excessive demands on the
pilot" (my translation) - over-confidence at its best/worst. The autopilot
functioned differently from the pilot's previous aircraft, and this might
have led him into the stall.

For those who can read German, the investigation report is he
http://www.bfu-web.de/berichte/98_3x329dub.pdf

That can also be translated as 'plane' stupid. Brand new airplane
and the guy is taking off into IMC. Even if you are familiar
with the plane, a brand new airplane I'd guess is just like a house or
car or anything else, there will be squawks. Try everything
out in VMC where you can test things without having to worry
about IMC.

Gerald