The exterior was repainted black, akin to the futuristic vehicles used in television and film. 
In addition, LED lights were added to the steel alloy mag wheels, front grille and bumpers. Perhaps Microsoft wanted their vehicle to be flashier and powerful, hence the addition of the LED lights to make it brighter and ultramodern.
The car electronics used in the interior were the most advanced of its kind. What the West Coast Customs did is refurbish the interior of the 1967 Ford Mustang and make it akin to the latest model. For good measure, they also added a Windows tablet to the passenger side of the dashboard and even equipped the vehicle with a free wifi connection. The best thing about the customized vehicle is that it can be operated without the use of car keys, using the latest Nokia cell phones in order to make the vehicle function.
The 21st century arguably brought the most significant changes in automobile design and function. Today’s generation of cars is equipped with a Global Positioning System mechanism designed to navigate the vehicle to its desired location. They are also equipped with television monitors on the dashboard and the front headrests, so that people can watch a television program or a movie while on a road trip. Moreover, digital display has replaced the analog systems in the tachometer, odometer and trip meter of the vehicle. And in some models, driverless cars are also starting to make its mark. Perhaps Microsoft did its best to digitize a classic vehicle, but then again, it may be either a good or a bad concoction between the old and the new.