A vehicle, comprising - a bodywork opening, which can at least partially be closed by at least one door (1, 1A, 1B) disposed in a closed position, and - a flat platform unit, which is provided to facilitate access into the vehicle via the bodywork opening, when the at least one door (1, 1A, 1B) is disposed in an open position, wherein at least part of the flat platform unit is formed by at least one adjustable, flat platform element (11, 11A, 11B), which a) forms part of the at least one door (1, 1A, 1B), which in the closed position closes at least part of the bodywork opening, or b) in at least one adjustment position, is fixed to and/or supported on a flat door leaf element (10, 10A, 10B) of the at least one door (1, 1A, 1B), characterized in that - the platform element (11, 11A, 11B), which in the closed position of the at least one door (1, 1A, 1B) closes at least part of the bodywork opening, is adjustable separately from at least one flat door leaf element (10, 10A, 10B) of the door (1, 1A, 1B), which in the closed position together with the platform element (11, 11A, 11B) closes at least part of the bodywork opening, wherein the at least one platform element (11, 11A, 11B) is disposed in a first adjustment position when the at least one platform element (11, 11A, 11B) closes at least part of the bodywork opening and cannot be used to facilitate access into the vehicle, and - the at least one platform element (11, 11A, 11B) can be adjusted between the first adjustment position and a second adjustment position, which defines a position of use of the platform unit in which the platform element (11, 11A, 11B) can be used to facilitate access into the vehicle, wherein the at least one platform unit in its position of use is variable in height and/or inclination with respect to a floor present in a vehicle interior of the vehicle. - a bodywork opening, which can at least partially be closed by at least one door (1, 1A, 1B) disposed in a closed position, and - a flat platform unit, which is provided to facilitate access into the vehicle via the bodywork opening, when the at least one door (1, 1A, 1B) is disposed in an open position, a) forms part of the at least one door (1, 1A, 1B), which in the closed position closes at least part of the bodywork opening, or b) in at least one adjustment position, is fixed to and/or supported on a flat door leaf element (10, 10A, 10B) of the at least one door (1, 1A, 1B), - the platform element (11, 11A, 11B), which in the closed position of the at least one door (1, 1A, 1B) closes at least part of the bodywork opening, is adjustable separately from at least one flat door leaf element (10, 10A, 10B) of the door (1, 1A, 1B), which in the closed position together with the platform element (11, 11A, 11B) closes at least part of the bodywork opening, wherein the at least one platform element (11, 11A, 11B) is disposed in a first adjustment position when the at least one platform element (11, 11A, 11B) closes at least part of the bodywork opening and cannot be used to facilitate access into the vehicle, and - the at least one platform element (11, 11A, 11B) can be adjusted between the first adjustment position and a second adjustment position, which defines a position of use of the platform unit in which the platform element (11, 11A, 11B) can be used to facilitate access into the vehicle, wherein the at least one platform unit in its position of use is variable in height and/or inclination with respect to a floor present in a vehicle interior of the vehicle.