Greg wrote: My comment is a question....If they can get over 1300 mpg by going roughly 15 mph can not they engineer something to get a bit over 325 mpg at 60 mph ? if simply math of dividing by 4 is used that is what you get 1300 / 4 = 325 just like 15 mph x 4 = 60 it is not that simple.... if we lived on the surface of the moon where there would be no wind resistance then that would be a reasonable