Well Towd, being a native Mexican, I should take offense at your rather ignorant reference about Mexican aviation maintenance workers' inability to maintain German aircraft. However, I had a good enough chuckle trying to make out your message through your creative spelling, so I'll pass up any further flaming.
Anyways, Mexico went to war against Japan together with the US, and sent pilots to fight the Rising Sun. Eventually, the Mexican airforce (Fuerza Aerea Mexicana) sent its 201 Squadron to the PTO, and saw action in US-built P40's. I'm going to guess that by 1945 the US must have transfered some P51's to Mexico.
Anyways, waiting to see what the plane is.
Zeefox out