Vehicle roof having an openable folding roof with a tensioning cable system

A vehicle roof having an openable folding roof and a tensioning cable which tensions the folding roof in a closed state, a front end of the tensioning cable being fixedly anchored to a front roof part of the folding roof and a rear end of the tensioning cable being held on a rear roof component of the folding roof which is fixed to a body portion of a motor vehicle, the tensioning cable being length-adjustable for adjusting the cable tension via a tensioning cable system, the tensioning cable system comprising a latching base which is fixedly anchored to the rear roof component, a latching element fixedly anchored to the rear end of the tensioning cable, and a latching mechanism disposed between the latching base and the latching element for adjusting the position of the latching element relative to the latching base such that the latching element is latched to the latching base in an adjusted position, wherein the adjusted position of the latching element is adjustable relative to the latching base in only the vehicle longitudinal direction toward the rear, wherein the latching mechanism includes a latching toothing on the latching element and corresponding flexible tongues on the latching base, wherein the latching element includes a base element with mutually-opposite lateral edge surfaces which run in the longitudinal direction and from which the latching toothing extends, wherein the latching base includes a main body with a continuous square hole running in the longitudinal direction which is configured for receiving the latching element therein, and wherein the flexible tongues extend from two mutually-opposite lateral side walls of the square hole and are configured to engage the corresponding latching toothing to latch the latching element in the adjusted position relative to the latching base.