Got to the location after setting up came to switch on the Godox 600, battery was flat so had to turn to the SB800 and have my assistant run round and multi flash the vehicle, saved the day (night).....
The camera settings seem a bit off, could be shot in manual at shutter speed 1/125, f/5.6, Iso100 for a better quality photo, unless of course you were looking for this 'vintage' grainy effect.