The same Senate-passed bill that could increase CAFE standards to 35 mpg by 2020 could also exempt Porsche from such regulations. Under the current law, any automaker that makes 10,000 vehicles or less per year is considered a low volume producer — resulting in relaxed standards. However, the new bill redefines a low-volume automaker as one with less than 0.4% of the U.S. market — or roughly 64,000 annual sales.
According to Automotive News, Porsche had record U.S. sales last year — selling 34,227 units. This volume puts Porsche well under the 0.4% proposed standard and would save the German automaker millions in fuel economy fines. Last year Porsche paid $4.6 million in fuel economy fines.
The new definition of a low-volume automaker could also benefit Land Rover and Jaguar. As independent companies, their U.S. sales would fall below the 0.4% threshold, exempting them from fuel economy fines. Three companies are bidding for the two luxury marques currently owned by Ford, with India's Tata Motors recently emerging as the leading bidder.
and tho it appears they removed this quote,
"The deal also drops the so-called "Porsche" provision in the Senate bill that would have exempted manufacturers that sell 0.4 percent or less of vehicles sold in the United States. That would amount to about 60,000 vehicles under current sales figures, and would include Porsche."
those words can still be seen in the Google snippet:
The deal also drops the so-called "Porsche" provision in the Senate bill that
would have exempted manufacturers that sell 0.4 percent or less of vehicles ...