Manufacturers
do not test every new vehicle offered for sale. They are only required
to test one representative vehicle—typically a preproduction
prototype—for each combination of loaded vehicle weight class,
transmission class, and basic engine.
Some
vehicles are exempt from these requirements:
Motorcycles
Large
vehicles with a gross vehicle weight rating (GVWR) over
8,500 pounds, such as larger pickup trucks and SUVs (GVWR
is the weight of the vehicle, all fluids, and its maximum
carrying capacity)
Popular Vehicles
Exempt from
Federal Fuel Economy Standards
Manufacturers
do not test every new vehicle offered for sale. They are only required
to test one representative vehicle—typically a preproduction
prototype—for each combination of loaded vehicle weight class,
transmission class, and basic engine.