Lets Consider Its Real
RC Is Revving QUiet Fast.....And As When RC Pulls Car From Stationary Position....Rc Must Leave Some Tyres Mark If Its Rubbing Against Road Since Motor Is Quiet Revvy And RPM's Of Motor Just Drop As It Start Gaining Traction And Using Motor Force In Pulling Car But You Can See Its Revving Freely And Tyres Are Just Spinning And Also Goes Here And There Initially Before Car Moves Means Its Just Tied With Car And Is Not Pulling.....!!
There's No Traction Gained By RC And Is Total Fake 
If There's Some Traction...Would Definitely Left Some Rubbing Marks On Road As Per Engine Revvs....!! 2nd Thing...RC's Don't Have That Much Weight On It.....! So Wheels Just Spin Freely As You See...!!
I Think Its Busted Totally And Fake And Some Force Is Applied From Back In Order To Move Car A Bit