Here's how some top-selling cars and light trucks would fare under an Obama administration proposal to put letter grades -- based on fuel economy and emissions -- on the window stickers of new vehicles.
This proposal, one of two for the 2012 model year, would give each vehicle a letter grade from A+ to D while highlighting the vehicle's estimated fuel cost savings over five years compared with the fleet average.
The rating estimates from the EPA and U.S. Department of Transportation are based on 2010 model year data.
Most small and mid-sized cars, as well as station wagons, would get B's. Most pickup trucks, large cars and minivans would get C's.
Under the grading system, 17 of the 2,011 models in the current fleet -- primarily electric vehicles and plug-in hybrids -- would receive an A or above.
A total of 14 vehicles -- including high-performance cars such as a Ferrari 599 GTB Fiorano, Mercedes-Benz Maybach 57 and Ferrari 612 Scaglietti -- would receive a D+ or below.
The median grade would be B-.
The alternative proposal would keep the current label's emphasis on fuel economy and annual fuel cost projections. A sliding bar underneath would compare the vehicle's fuel economy and tailpipe emissions with the fleet average.