A passenger vehicle pneumatic tire (10, 20) comprising: a carcass toroidally extending between a pair of bead portions; and inclined belt layers (3, 3') having cords inclined with respect to a tire circumferential direction and a circumferential belt layer (4, 4') having cords extending along the tire circumferential direction, the inclined belt layers (3, 3') and the circumferential belt layer (4, 4') being disposed on a tire radial outer side of a crown portion of the carcass, wherein: the inclined belt layers (3, 3') include at least two inclined belt layers (3n, 3w) having different tire widthwise widths (W 1, W 2); an inclination angle θ 1 with respect to the tire circumferential direction of the cords forming the inclined belt layer having the widest width and an inclination angle θ 2 with respect to the tire circumferential direction of the cords forming the inclined belt layer having the narrowest width satisfy correlations that 30 ° ≤ θ 1 ≤ 85 °, 10 ° ≤ θ 2 ≤ 30 °, and θ 1 > θ 2; and a tire widthwise width W 1 of the inclined belt layer having the widest width and a tire widthwise width W 2 of the inclined belt layer having the narrowest width satisfy a correlation that W 2 ≤ 0.6 W 1, characterised in that: when an internal pressure is 250 kPa or more, a ratio of a sectional width SW to an outer diameter OD of the tire SW/OD is 0.26 in the case where the sectional width SW of the tire is less than 165 mm, and the sectional width SW and an outer diameter OD of the tire satisfy a relation expression that OD≥2.135×SW+282.3 in the case where the sectional width SW of the tire is 165 mm or more. a carcass toroidally extending between a pair of bead portions; and inclined belt layers (3, 3') having cords inclined with respect to a tire circumferential direction and a circumferential belt layer (4, 4') having cords extending along the tire circumferential direction, the inclined belt layers (3, 3') and the circumferential belt layer (4, 4') being disposed on a tire radial outer side of a crown portion of the carcass, wherein: the inclined belt layers (3, 3') include at least two inclined belt layers (3n, 3w) having different tire widthwise widths (W 1, W 2); an inclination angle θ 1 with respect to the tire circumferential direction of the cords forming the inclined belt layer having the widest width and an inclination angle θ 2 with respect to the tire circumferential direction of the cords forming the inclined belt layer having the narrowest width satisfy correlations that 30 ° ≤ θ 1 ≤ 85 °, 10 ° ≤ θ 2 ≤ 30 °, and θ 1 > θ 2; and a tire widthwise width W 1 of the inclined belt layer having the widest width and a tire widthwise width W 2 of the inclined belt layer having the narrowest width satisfy a correlation that W 2 ≤ 0.6 W 1, characterised in that: when an internal pressure is 250 kPa or more, a ratio of a sectional width SW to an outer diameter OD of the tire SW/OD is 0.26 in the case where the sectional width SW of the tire is less than 165 mm, and the sectional width SW and an outer diameter OD of the tire satisfy a relation expression that OD≥2.135×SW+282.3 in the case where the sectional width SW of the tire is 165 mm or more. the inclined belt layers (3, 3') include at least two inclined belt layers (3n, 3w) having different tire widthwise widths (W 1, W 2); an inclination angle θ 1 with respect to the tire circumferential direction of the cords forming the inclined belt layer having the widest width and an inclination angle θ 2 with respect to the tire circumferential direction of the cords forming the inclined belt layer having the narrowest width satisfy correlations that 30 ° ≤ θ 1 ≤ 85 °, 10 ° ≤ θ 2 ≤ 30 °, and θ 1 > θ 2; and a tire widthwise width W 1 of the inclined belt layer having the widest width and a tire widthwise width W 2 of the inclined belt layer having the narrowest width satisfy a correlation that W 2 ≤ 0.6 W 1, characterised in that: when an internal pressure is 250 kPa or more, a ratio of a sectional width SW to an outer diameter OD of the tire SW/OD is 0.26 in the case where the sectional width SW of the tire is less than 165 mm, and the sectional width SW and an outer diameter OD of the tire satisfy a relation expression that OD≥2.135×SW+282.3 in the case where the sectional width SW of the tire is 165 mm or more.