For pure electric cars, the combined fuel economy number is also the most prominent, with the city and highway numbers secondary. These are mpge ratings, or "miles per gallon equivalent," so car buyers can easily compare an electric car to its gasoline counterpart regarding fuel economy. For plug-in hybrids, which have an electric-only mode as well as use gasoline, the label has mpg and mpge data.
Gallons per 100 miles. The mpg rating can be misleading for consumers trying to compare fuel economy on multiple vehicles. Many shoppers mistakenly believe that choosing a 16-mpg car over a 15-mpg car has the same fuel economy benefit as choosing a 36-mpg car over a 35-mpg one. In fact, the lower the overall fuel economy, the bigger the difference that 1 mpg makes.
By knowing that a car will use 3.8 gallons of fuel to drive 100 miles, it becomes much easier for a consumer to translate that into a real trip they might take and the actual cost of the fuel to get there, based on local gas prices. For electric cars and plug-in hybrids, the label provides a figure for the number of kilowatt hours it takes to travel 100 miles.
Fuel cost. While the annual fuel cost isn't new to the car window sticker, what is new is the additional information that shows the fuel cost of this particular car over five years as compared to the average new vehicle. This area of the label is the same for gasoline cars, plug-in hybrids and electric cars. For cars that will cost more in fuel than the average car, the window sticker says, "You will spend $XXX," with the figure noting the additional amount you will spend over the fuel costs of the average car, not the total amount to operate the car. For cars whose fuel costs are less than the average car, the label says, "You will save $XXX."
Overall ratings. To provide a clearer picture of the car's fuel economy and environmental friendliness overall, there are ratings on a scale of one to 10 for each of these areas. These ratings will be particularly helpful for consumers who are comparison-shopping multiple types of vehicles, such as a crossover and a sedan, or a sedan and an electric car, since it is between different types of cars that this varies most widely.
QR code. Smartphone users now have a way to easily obtain additional information while standing on the dealer's lot, with the QR code that is now on every window sticker.
"QR" stands for quick response. Perhaps most helpful is that this code allows shoppers to instantaneously customize the information for their situation, for example, more accurate fuel economy estimates based on their driving habits or more accurate fuel cost estimates based on the gasoline prices in their area.