Low-rolling-resistance tires. A number of so-called ‘eco’ or ‘green’ models eke out an extra mile or two per gallon through some focused efficiency improvements. While aerodynamic tweaks and things like grille shutters are effective, impressive solutions, low-rolling resistance tires are often also part of the package. And we’ve found a number of these tires to be noticeably inferior in the wet. Is their seemingly negligible gain in mileage worth the potential loss in safety for an emergency maneuver? These are the kind of face-value tradeoffs that make any safety-conscious shopper shake.