There's a possible clue to the reg in one of the seller's other items. http://www.ebay.co.uk/itm/Vauxhall-Chevette-HS-or-Firenza-HPF-Steering-Wheel-/221170968807?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item337ed128e7 Of course it may be totally unrelated.