The first mass-production electric car to boast a highway range greater than 300 miles on a single charge is here. It's the 2016 Tesla Model S 90D.

Tesla's updated Model S 90D is now rated at 303.2 miles of highway range, according to measurements taken by the EPA. 

CHECK OUT: How turbocharger wastegates work

Technically, as InsideEVs points out, the latest Model S is rated at 294 miles of total range, which is a weighted average of the 285.7-mile city range and the 303.2-mile highway range. The EPA calculates for 45 percent city miles and 55 percent highway miles.

Helping the car achieve a slightly longer range than the outgoing Model S 85D, which was rated at 270 miles of range, the new 90D variant boasts an enlarged 90-kwh battery pack. Tesla has also credited the car's newly redesigned front fascia as offering large aerodynamic benefits.

The outgoing 85D had, as its name suggests, an 85-kwh battery pack.

ALSO SEE: FreeValve camless engine shown in Qoros concept at 2016 Beijing Auto Show

The MPGe ratings increase as well. While the 2015 85D had MPGe ratings of 95 city, 106 highway, 100 combined, the 2016 90D is rated at 101/107/103.

The Model S P90D, with its more performance-oriented positioning and significantly more powerful engine, rates a bit lower at 270 miles on the highway. 

For more information on electric range and MPGe, visit fueleconomy.gov.

_______________________________________

Follow Motor Authority on FacebookTwitter and YouTube.