The fuel-economy sticker on new cars will change under plans announced Monday.

Will your new car get an A in fuel efficiency? A government proposal may add letter grades to showroom window stickers on new cars and trucks to reflect a vehicle’s overall fuel economy and greenhouse gas emissions.

The Transportation Department and Environmental Protection Agency said Monday they were considering two options to upgrade the energy and environmental information that will adorn labels on new vehicles in car dealership showrooms, beginning with the 2012 model year. Get the full story »