On the eve of the unveiling of Tesla's 2016 Model X, the U.S. Environmental Protection Agency has released the luxury SUV's fuel economy ratings for the two available models.

The Model X all-wheel-drive 90D model provides 94 miles per gallon equivalent driving on the highway and 90 mpge in the city. The vehicle provides a driving range of 257 miles.

The Model X all-wheel-drive P90D model provides 90 mpge highway and 89 mpge city. The vehicle provides a range of 250 miles.

As expected, the Model X's fuel economy and range is slightly lower than that of the Model S sedan. View the EPA's ratings here.