The invention provides a method of opening a vehicle door in a doorway of a vehicle body, the method comprising: rotating such vehicle door in a horizontal plane of motion until such vehicle door substantially clears such vehicle body; and then rotating such vehicle door in a vertical plane of motion until such vehicle door substantially clears such door way. It includes several holding elements, which are displaceable under the effect of at least one resilient element from a rest position on the grip into an actuatable position in which they are capable of picking up the golf ball. The resulting top surface of the SiOx oxide can be textured concomitant with the growth process or through an additional mild wet chemical step.