Tesla holiday Easter Eggs make your car dance, fly to Mars

Tesla continues to demonstrate why its success among a crowded field of auto giants isn't a fluke, this time with a special holiday greeting.  SEE ALSO: Elon Musk seems serious about creating a boring company to solve traffic Hidden in a recent Tesla Model X software update released earlier this week was an Easter Egg that allows owners to put the car into a holiday-themed light show mode.  Pressing the Tesla logo for about five seconds on the car's control screen and then typing in th