Mate, it's YOU who've got your facts wrong...
Clearly, written comprehension is NOT your strong point.
It may be a "Guaranteed" fact that "oxford has only 1 aircraft with auto pilot in the US".
But the previous poster was talking about Oxford at Moorabbin airport in AUSTRALIA. (Hint, posting in D&G generally means Oz or NZ)
what warrior 2 do you know of that has autopilot?
Where did he say that? Oxford use (mostly) C172/C182's for their SE training aircraft.
Oh and with some instructors +- 20ft is a fail
Failing pilots +/- 20ft. Really? Poor instructing, IMHO. In OZ, the IFR tolerances are allowed +/- 100ft (or +100/-0 ft at the minima).