The spin at the end was not continuous with the hand holding before as the vehicles are spinning with momentum inn the other direction. They stopped and came back in reverse most likely.
Also these are good test drivers, and the vehicles are AWD which you can see as the front tires begin to spin and the then slow down as the rear spin up at the beginning.
Also some of the moves with the tires stopping and the other still spinning I think they might have some modified brake controls to lock up the front brakes or rear brakes and leave the other functioning fine.