Car tyre having a tread band comprising a central region, extending across an equatorial plane (X-X), and two shoulder regions (L2, L3), which are separated from the central region by a first circumferential groove, axially delimiting a first shoulder region from the central region, and a second circumferential groove, axially delimiting a second shoulder region from the central region (L 1); - said central region having a width greater than or equal to at least 35% of an effective width of said tread band; - said first shoulder region and said second shoulder region comprising a plurality of first transverse grooves (6, 7) having a first end located substantially at the respective edge of the tread band; - at least one of said first shoulder region and said second shoulder region comprising a plurality of first sipes having a substantially transverse course and consecutively arranged relative to said first transverse grooves (6, 7), so that an overall extension of said first transverse grooves (6, 7) and of said first sipes is equal to at least 90% of the width of the shoulder region (L2, L3) where they are located; - said first transverse grooves (6, 7) having an extension greater than the extension of the first sipes; - said first transverse grooves (6, 7) having a maximum width greater than or equal to 4 mm; characterized in that - said central region has a first and a second circumferential rib (9, 10) separated by a third circumferential groove, the latter being disposed across the equatorial plane X-X; - said first and second circumferential ribs (9, 10) comprising a plurality of second transverse grooves (11, 12), and a plurality of second sipes having a substantially transverse course and consecutively arranged relative to said second transverse grooves (11, 12), so that an overall extension of said second transverse grooves (11, 12) and said second sipes is equal to at least 90% of the width of the circumferential rib where they are located; - said second transverse grooves (11, 12) having an extension greater than the extension of the second sipes; - said second transverse grooves (11, 12) having a maximum width greater than or equal to 2 mm; - said tread band further comprising at least one further plurality of sipes (23, 24, 25). - said central region having a width greater than or equal to at least 35% of an effective width of said tread band; - said first shoulder region and said second shoulder region comprising a plurality of first transverse grooves (6, 7) having a first end located substantially at the respective edge of the tread band; - at least one of said first shoulder region and said second shoulder region comprising a plurality of first sipes having a substantially transverse course and consecutively arranged relative to said first transverse grooves (6, 7), so that an overall extension of said first transverse grooves (6, 7) and of said first sipes is equal to at least 90% of the width of the shoulder region (L2, L3) where they are located; - said first transverse grooves (6, 7) having an extension greater than the extension of the first sipes; - said first transverse grooves (6, 7) having a maximum width greater than or equal to 4 mm; characterized in that - said central region has a first and a second circumferential rib (9, 10) separated by a third circumferential groove, the latter being disposed across the equatorial plane X-X; - said first and second circumferential ribs (9, 10) comprising a plurality of second transverse grooves (11, 12), and a plurality of second sipes having a substantially transverse course and consecutively arranged relative to said second transverse grooves (11, 12), so that an overall extension of said second transverse grooves (11, 12) and said second sipes is equal to at least 90% of the width of the circumferential rib where they are located; - said second transverse grooves (11, 12) having an extension greater than the extension of the second sipes; - said second transverse grooves (11, 12) having a maximum width greater than or equal to 2 mm; - said tread band further comprising at least one further plurality of sipes (23, 24, 25).