Mario Kart 8 is headed to the Wii U in the spring of 2014, so to keep interest going and show off some of the racing action, Nintendo has released a new trailer of Mario and friends speeding around new tracks such as an airport (with planes coming and going!).  Lots to like here even if it seems like more of the same at first glance.  Still, it's Mario Kart and that's always fun.  There are some new additions here: UFOs and ATV buggies join the traditional karts and bikes, while Rosalina and the various baby characters are confirmed to return.  It's something else to look forward to in what is already looking like an expensive year.