This is America, and that person DOES NOT NEED TO JUSTIFY HERSELF TO YOU! If that V10 Excursion ever gets in an accident with your "95+ MPG" car, it will illustrate one very good reason to drive an Excursion, and you will not survive. Even with a five star crash rating, these newer lighter cars are death traps when fitted against large SUVs, these crash ratings do not take into account the advantage created by additional weight. Also, if your considering CO2 as "pollution", are you aware of the fact that only 0.28% of all greenhouse gasses are from human activity ? Not 28%, but 0.28%, the rest is mainly water vapor. With all of the resources that the world is throwing at reducing CO2 emissions we could actually do something useful instead like end world hunger. What we are doing to reduce CO2 is kind of like pissing into the ocean to warm it up, maybe it makes you better but it will not work. Enjoy that "95MPG" golf cart you drive.