Passenger transport vehicle with a car body mounted on at least two axles, - wherein the car body comprises two single-deck car sections arranged above the axles and a double-deck car section arranged between them in a longitudinal direction, wherein the double-deck car section has a lower deck and an upper deck, - wherein the lower deck comprises two entrance areas and a first passenger area arranged between them in the longitudinal direction, so that the entrance areas are spaced apart from one another in the longitudinal direction by the first passenger area, - wherein the entrance areas each comprise at least one door device each with a lateral entrance edge for lateral entry into the passenger transport vehicle and an entrance floor, - wherein the entrance floor extends in each case at a lower height level than the entrance edge and in particular is limited to a central portion of the entrance area, - wherein a transition between the entrance floor and the entrance edge is steplessly configured as a slope, - wherein a first passenger floor of the first passenger area extends lower in vertical direction than the entrance floor, - wherein in each case a transition between entrance floor and the first passenger floor is configured steplessly by means of a first ramp, - wherein the upper deck comprises a second, a third and a fourth passenger area (20, 30, 40), wherein the second and third passenger areas (20, 30) each being arranged substantially in vertical direction above an entrance area, and the fourth passenger area being provided in the longitudinal direction between the second and third passenger areas (20, 30), - wherein the second passenger area and the third passenger area each comprise seating devices for at least five persons, wherein the seating devices are arranged such that a seating direction of the seating devices is substantially aligned in a transverse direction, - wherein in the second passenger area and third passenger area an installation space extending in the longitudinal direction for supply apparatus is provided in an area between a lateral wall of the car body and a backrest of the seating devices, characterised in that under the installation space a drive for automatic operation of the door device is provided. - wherein the car body comprises two single-deck car sections arranged above the axles and a double-deck car section arranged between them in a longitudinal direction, wherein the double-deck car section has a lower deck and an upper deck, - wherein the lower deck comprises two entrance areas and a first passenger area arranged between them in the longitudinal direction, so that the entrance areas are spaced apart from one another in the longitudinal direction by the first passenger area, - wherein the entrance areas each comprise at least one door device each with a lateral entrance edge for lateral entry into the passenger transport vehicle and an entrance floor, - wherein the entrance floor extends in each case at a lower height level than the entrance edge and in particular is limited to a central portion of the entrance area, - wherein a transition between the entrance floor and the entrance edge is steplessly configured as a slope, - wherein a first passenger floor of the first passenger area extends lower in vertical direction than the entrance floor, - wherein in each case a transition between entrance floor and the first passenger floor is configured steplessly by means of a first ramp, - wherein the upper deck comprises a second, a third and a fourth passenger area (20, 30, 40), wherein the second and third passenger areas (20, 30) each being arranged substantially in vertical direction above an entrance area, and the fourth passenger area being provided in the longitudinal direction between the second and third passenger areas (20, 30), - wherein the second passenger area and the third passenger area each comprise seating devices for at least five persons, wherein the seating devices are arranged such that a seating direction of the seating devices is substantially aligned in a transverse direction, - wherein in the second passenger area and third passenger area an installation space extending in the longitudinal direction for supply apparatus is provided in an area between a lateral wall of the car body and a backrest of the seating devices,