Just so you know, Venezuela (where gas is $0.06 per gallon) is in South America. In your list, the cheapest Middle Eastern Country for gas is Saudi Arabia @ $ 0.45 to the gallon NOT $ 0.05.
Was one of those a Bordeaux Red Limited with SHO wheels? Did it have Dual exhausts? Was it like the one spied:
http://www.leftlanenews.com/ford-taurus-sho-2012.html
If both your auto dimming lights AND rain sensor wipers are not ok, I suspect that you have some tinting on the windsheild thats covering the sensor.
Also, fyi, there is a Setting for auto high beam sensitivity, page 64 of the Owner's Manual.