Mastizaade is already gaining much popularity even before release since when its trailer was out and what added to its fame were the hot songs of the movie. And now a sizzling Car Wash Challenge is what catching the attention and interest of people! Yes, you read it right! The bold and s*xy Sunny Leone will wash your car! But for that, you need to send some of your car washing videos on Twitter and if your videos get selected, Sunny herself will wash your car! Amazing, isn’t it? What’s more, there is a car washing scene of Sunny Leone too in the movie which is no doubt a great boost for people! Let’s see, who’s the lucky winner to win this challenge….