Ari -

I believe the Escape, the Mariner, and the Tribute are all built on the same production line in Kansas City, Missouri. 90% (or more) of their mechanical parts are identical.

A/C - the FEH/MMH/MTH do not have the electric motor driven A/C compressor that can provide cooling while the vehicle is stopped and the internal combution engine is off. I believe the MTH has an A/C setting that will force the ICE to run, keep the interior cool, but pay a fuel efficiency penalty (non-hybrid cars suffer from reduced FE when running the A/C as well) Good Luck