RUBBER COMPOSITION AND VEHICLE TYRE

The invention relates to a sulfur-crosslinkable rubber mixture, in particular for tread strips of vehicle tires, and to a vehicle tire. The sulfur-crosslinkable rubber mixture contains: - 20 to 100 phr of at least one functionalized styrene-butadiene copolymer A, wherein the functionalized styrene-butadiene copolymer is functionalized per polymer chain at at least one chain end with an amino group-containing alkoxysilyl group and at least one further alkoxysilyl group(s) and/or at least one further amino group-containing alkoxysilyl group(s), and - a vulcanization system that contains at least one accelerator and elemental sulfur and at least one sulfur-donating substance, and - 20 to 300 phr of silica and/or carbon black.