Rangers have it rough for CAFE:
http://jalopnik.com/5948172/how-the-government-killed-fuel-efficient-cars-and-trucks
Quote:
On the surface, the footprint requirements can be viewed as logical; a compact, fuel-efficient car like the Honda Fit, should be able to hit tougher targets, by virtue of its small size, aerodynamic profile and powertrain choices. Without any advanced technology like direct-injection, lightweight steel or aluminum construction or even low-rolling resistance tires, it manages a respectable 28/35 mpg IRL, while offering a practical, fun-to-drive package. The Ford F-150 has a very different mission; it must be large, durable, powerful and able to meet the needs of a full-size pickup, and will naturally be less conducive to achieving the kind of fuel economy that a Fit can.
Unfortunately, the footprint method has the opposite effect; rather than encouraging auto makers to strive for unprecedented fuel economy in their passenger car offerings, it has incentivized auto makers to build larger cars, in particular, more car-based crossovers that can be classified as "trucks" as used to skew fleet average figures, much the same way the PT Cruiser did. Full-size trucks have become a "protected class", safe from the most aggressive targets, while compact trucks have become nearly extinct as a result.