Flexible fuel vehicles (FFVs) use E85 fuel. According to the U.S. Department of Energy, FFVs have been around since the 1990s, and more than 100 car models exist today that can run on E85 fuel.
The U.S. Department of Energy's website for fuel economy information (fueleconomy.gov) says that most FFVs manufactured since 2008 have a yellow gas cap or ring to indicate they accept E85 fuel. Some FFVs also have "Flex-Fuel" or "E85" badges or labels on the car body or fuel door. Vehicle models that use E85 fuel include Ford Focus, Chrysler 200, Dodge Dart, Volkswagen Jetta and Nissan Versa.