"your V5 it clearly states-THIS DOCUMENT NOT TO BE USED AS PROOF OF OWNERSHIP"
this is because it is easily changeable.
it says this so people don't think the name on it is set in stone, and get conned by it.
it is not because they do not own the car at all
DRIVER-- one employed in conducting a coach, carriage, wagon, or other vehicle..."
BOUVIER'S LAW DICTIONARY, (1914) p. 940.
Driver - One employed in conducting or operating a coach, carriage, wagon, or other vehicle, with horses, mules, or other animals, or a bicycle, tricycle, or motor car, though not a street railroad car. See Davis v. Petrinovich, 112 Ala. 654, 21 So. 344, 36 L.R.A. 615; Isaacs v. Railroad Co., 7 Am. Rep. 418, 47 N.Y. 122.
Black's Law Dictionary, 3rd Ed