Aqueous coating composition, preferably pigmented aqueous basecoat composition, comprising: (a) at least one aqueous dispersion of core/shell type particles comprising a polyurethane resin as the core portion and a crosslinked acrylic resin as the shell portion, wherein the particles are obtained by: (i) initially charging an aqueous dispersion of at least one polyurethane resin as core portion, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane core portion to obtain the crosslinked acrylic resin shell portion, wherein: (ii-1) the polymerizing occurs in the presence of a water-soluble initiator; (ii-2) a metered addition of the olefinically unsaturated monomers occurs such that a concentration of 6% by weight, based on a total amount of the olefinically unsaturated monomers, in a reaction solution of the polymerizing is not exceeded during the entire duration of the polymerizing; and (ii-3) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and (b) at least one aqueous polyurethane-polyurea dispersion comprising polyurethane-polyurea particles having an average particle size of 40 to 2,000 nm and a gel fraction of at least 50%, the polyurethane-polyurea particles contain, in each case in reacted form: • at least one polyurethane prepolymer comprising isocyanate groups and comprising anionic groups and/or groups which are configured to be converted into anionic groups, and • at least one polyamine comprising two primary amino groups and one or two secondary amino groups. (a) at least one aqueous dispersion of core/shell type particles comprising a polyurethane resin as the core portion and a crosslinked acrylic resin as the shell portion, wherein the particles are obtained by: (i) initially charging an aqueous dispersion of at least one polyurethane resin as core portion, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane core portion to obtain the crosslinked acrylic resin shell portion, wherein: (ii-1) the polymerizing occurs in the presence of a water-soluble initiator; (ii-2) a metered addition of the olefinically unsaturated monomers occurs such that a concentration of 6% by weight, based on a total amount of the olefinically unsaturated monomers, in a reaction solution of the polymerizing is not exceeded during the entire duration of the polymerizing; and (ii-3) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and (i) initially charging an aqueous dispersion of at least one polyurethane resin as core portion, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane core portion to obtain the crosslinked acrylic resin shell portion, (ii-1) the polymerizing occurs in the presence of a water-soluble initiator; (ii-2) a metered addition of the olefinically unsaturated monomers occurs such that a concentration of 6% by weight, based on a total amount of the olefinically unsaturated monomers, in a reaction solution of the polymerizing is not exceeded during the entire duration of the polymerizing; and (ii-3) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and (b) at least one aqueous polyurethane-polyurea dispersion comprising polyurethane-polyurea particles having an average particle size of 40 to 2,000 nm and a gel fraction of at least 50%, the polyurethane-polyurea particles contain, in each case in reacted form: • at least one polyurethane prepolymer comprising isocyanate groups and comprising anionic groups and/or groups which are configured to be converted into anionic groups, and • at least one polyamine comprising two primary amino groups and one or two secondary amino groups. • at least one polyurethane prepolymer comprising isocyanate groups and comprising anionic groups and/or groups which are configured to be converted into anionic groups, and • at least one polyamine comprising two primary amino groups and one or two secondary amino groups.