GM has reached an agreement with top US regulators that allows them to certify the Volt as the worlds first 100 mpg car.

While the exact method of testing is not known we do know that the EPA agreed to a testing method that will at least achieve a three digit mileage number.

“It’s a huge milestone to beat 100 mpg. It’s bragging rights,” said Rebecca Lindland, an analyst at Global Insight Inc. in Lexington, Massachusetts. “To many people, GM is just about gas-guzzling SUVs. They never get credit for fuel economy. If Toyota were doing the Volt, they would be having parades and waving flags.”

The EPA will confirm the method of testing when it gets finalized.  Spokeswoman Catherine C. Milbourn said in a statement that the agency “hopes to have a final policy soon”.

Reaching past 100 miles per gallon on the Volt would be a boon to GM since all automakers have to raise their fleet to 35 mpg according to CAFE standards by 2020.

Depending on different assumptions on how much fuel is used the Volt could get an EPA rating between 120 mpg and 200 mpg.

Source: Bloomberg