 SYNC: In an early scene where Darry is speeding to catch up to an RV  in front of them, we hear the car shifting gears about three times.  However, when shots looking into the car at Darry driving are shown,  it is his right hand on the wheel, while we still hear gears  shifting. Unless there was a shifter by the door and near his left  hand or he switched rapidly, this wouldnt be possible.