This is inconceivable, such things should never exist, however, they do and I don't think anything can be done as of yet.
What really gets to me is people are also using this meathod getting a 3 star ranking and its wrong, at some point they are going to go online with 3 gold painted stars and lose so badly because they are completely hopeless at finishing a lap and only then end up resorting to cheating on wifi.
Lets hope a future updates burns it to the ground.