The definitions for cars and trucks are not the same for fuel economy and emission standards. For example, a Chrysler PT Cruiser is defined as a car for emissions purposes and a truck for fuel economy purposes. Under the current light truck fuel economy rules, the PT Cruiser will have a higher fuel economy target (28.05 mpg beginning in 2011) than it would if it were classified as a passenger car. This trend has reversed itself since the crossover has eroded SUV sales during the mid-2000s; SUVs must conform with emission standards and some crossovers are defined as a car for fuel economy purposes.