BMW has never taken on the likes of the Mercedes S63/S65 AMG models but recent rumors are indicating that this will not be the case for much longer. BMW are possible working on a 600 horsepower M7 which means it will be less powerful than the S65 AMG but could it be a better car? TopSpeed kindly generated this rendering of what the German flagship could possibly look like and it gets a big thumbs up in my books.