The 2013 Tesla Model S is a game changer in the world of cars. Not only is it completely electric but it can go up to 300 Miles on a complete charge. The 2013 Tesla Model is also luxurious, elegant, stylish and expensive. The 2013 Audi S8 is all of those things and more. It is more luxurious, more powerful and perhaps even faster. Will testing these sports sedans at a mile above sea level make any difference?