Tread profile of a vehicle tyre - in particular a utility vehicle tyre - having profile elements (1, 2, 3, 4, 5, 6) which are separated from one another by channels (7, 8, 9, 10, 11) and which are delimited radially outwardly by a radially outer surface, and having additional shallow grooves which are formed in the radially outer surface of profile elements (1, 2, 3, 4, 5, 6) and which are delimited inwardly in the radial direction R by a groove base, and is formed with decreasing depth T along the extent of the groove, starting from a position of the greatest depth T MAX of the groove up to the extent end of the groove pointing away from the deepest point, wherein the groove base is formed with a constantly rising depth profile along the extent of the groove, starting from a position of the greatest depth T MAX of the groove up to the extent end of the groove pointing away from the deepest point and formed in the radially outer surface, and wherein, at least in a first extent portion which extends as far as the extent end in the radially outer surface, the depth profile of the groove base is formed such that it rises in a degressive curve and with a tangential transition to the radially outer surface, wherein the depth profile of the groove is formed with a depth profile which rises in a curve along its entire extent, starting from the position of the greatest depth T MAX up to the extent end of the groove pointing away from the deepest point and formed in the radially outer surface, wherein along its extent, the groove is delimited on both sides of the groove base by a respective groove flank, which each extend from the radially outer surface inwardly in the radial direction R, so as to enclose a tilt angle, measured in the section planes perpendicular to the extension direction of the groove, with respect to the radial direction R, as far as the groove base, wherein along the extent of the groove, in the section planes perpendicular to the extension direction of the groove, the one flank is formed with a tilt angle α, the minimum αmin thereof formed in the groove, and the other flank is formed with a tilt angle β, the minimum βmin thereof formed in the groove, characterized in that along the extent of the groove, starting from the position of the deepest point T MAX, in which α is αmin and β is βmin, up to the extent end of the groove pointing away from the deepest point and formed in the radially outer surface, at least one - in particular both - flank(s) (15, 16) are formed with a flank angle which increases, in particular continuously, wherein the flank angle(s) has/have their maximum value of 90° in the extent end. wherein the groove base is formed with a constantly rising depth profile along the extent of the groove, starting from a position of the greatest depth T MAX of the groove up to the extent end of the groove pointing away from the deepest point and formed in the radially outer surface, and wherein, at least in a first extent portion which extends as far as the extent end in the radially outer surface, the depth profile of the groove base is formed such that it rises in a degressive curve and with a tangential transition to the radially outer surface, wherein the depth profile of the groove is formed with a depth profile which rises in a curve along its entire extent, starting from the position of the greatest depth T MAX up to the extent end of the groove pointing away from the deepest point and formed in the radially outer surface, wherein along its extent, the groove is delimited on both sides of the groove base by a respective groove flank, which each extend from the radially outer surface inwardly in the radial direction R, so as to enclose a tilt angle, measured in the section planes perpendicular to the extension direction of the groove, with respect to the radial direction R, as far as the groove base, wherein along the extent of the groove, in the section planes perpendicular to the extension direction of the groove, the one flank is formed with a tilt angle α, the minimum αmin thereof formed in the groove, and the other flank is formed with a tilt angle β, the minimum βmin thereof formed in the groove, characterized in that along the extent of the groove, starting from the position of the deepest point T MAX, in which α is αmin and β is βmin, up to the extent end of the groove pointing away from the deepest point and formed in the radially outer surface, at least one - in particular both - flank(s) (15, 16) are formed with a flank angle which increases, in particular continuously, wherein the flank angle(s) has/have their maximum value of 90° in the extent end.