The Tesla Model S is a full-sized plug-in electric five-door, luxury liftback, produced by Tesla Motors. Since its introduction in June 2012 it has achieved rapidly growing sales, particularly in Norway and California. It scored a perfect 5.0 NHTSA safety rating. The US Environmental Protection Agency (EPA) official range for the Model S Performance model equipped with an 85 kWh battery pack is , topping the Tesla Roadster to lead the electric car market. EPA rates its energy consumption at 237.5 Wh per kilometer (38 kWh/100 mi) for a combined fuel economy of 89 miles per gallon gasoline equivalent (). Global cumulative sales of the Model S passed the 25,000 unit mark in December 2013. The Model S became the first electric car to top the monthly new car sales ranking in any country, twice leading in Norway, in September and again in December 2013. , about 56,800 units had been sold worldwide. The Tesla Model S won awards such as the 2013 World Green Car of the Year, 2013 Motor Trend Car of the Year, Automobile Magazine’s 2013 Car of the Year, Time Magazine Best 25 Inventions of the Year 2012 award and Consumer Reports’ top-scoring car ever.