I Also Own a Mustang and on A Forum or Two...

Its more than OK to be a MOPAR freak and love 'stangs, they all offer something special.

In the case of the engine I'd give them a chance to make-good before going for the hammer. That is super disappointing, I know what it is like when you can't play with your new toy, especially one THAT expensive.

Good luck with the pony!