Tesla Motors introduced the Model S sedan for the 2012 model year, a few months after discontinuing its very first model, the Roadster. The all-electric sedan was met with huge enthusiasm, mostly due to its impressive performance figures and extended range, which reached up to 265 miles per charge. The Model S came with three battery pack options that delivered up to 470 horsepower and performance figures that rivaled those of high-performance, gasoline-powered sedans. The Model S received only software and safety updates through the 2014 model year, but that all changes with the 2015 model year. For 2015, the California-based automaker rolled out the first extensive upgrade for the EV’s drivetrain, consisting of an additional electric motor that enables the Model S to become an all-wheel-drive vehicle with mind-bending performance numbers.