I'd be curious to know how much of this is motivated by the "let's get those gas-guzzling SUVs off the road" mentality. I'm a new Jeep owner who just traded in my '96 Geo Tracker (26 mpg city, Cleveland potholes and all, even higher on the open road) and had a lot of people who wanted to take me to task for driving such a "non-eco-friendly" vehicle.
I guess for some of those people who can't stand to see someone else enjoying something of which they do not approve it's a "more than one way to skin a cat" sideways maneuver to make them less attractive.
Going by those figures, I'd have to get another million miles or so on mine before I started pushing the odds. At age 54 I'm pretty sure that something else will get me before a gas tank explosion has a chance to take me out. laugh.gif