Those highly-suspect fuel mileage ratings are being revisited by EPA

Complaints have grown on accuracy since rating first appeared in late 1970s

Alliance of Automobile Manufacturers: Surveys indicate customers satisfied as is

Consumer's Union rated Toyota Prius 22% lower than MSRP sticker indicated

3 tests may be added by EPA: Driving up to 80 mph; 95 degree heat w/ AC; run at 20 degrees

Most drivers find current scores out of sync w/ real-world driving situations

Rules haven't been updated since 1985, may lower rating on Toyota Prius

Lawmakers in Congress also weighing ways to revise EPA testing system

John German w/ Honda US: Numbers still won't be accurate as tests are extreme

Some automakers, dealers also say they are satisfied w/ scoring system as it is