i have to ask, what is the big deal with the world specail super duper edition of the sirio evo 2, arent all the evo2 motors just as good, being the new motor came after the races? sirios are very good especially for the price, you could beat a 300 dollar plus nova and only spend 200 on the evo. why the change. i have a evo2, why should i even think about a wcr version.