A wagon body of a vehicle, in particular a rail vehicle, comprising - a passenger compartment with a compartment floor (103.3) and - a seat fixation device located within said passenger compartment; - said passenger compartment defining a longitudinal direction, a transverse direction and a height direction, a centerline plane (102.1), a first compartment side (103.1) and a second compartment side (103.2); - said centerline plane (102.1) running parallel to said longitudinal direction and said height direction; - said first and second compartment side (103.1, 103.2) being located at opposite sides of said centerline plane (102.1); - said seat fixation device comprising a first seat fixation unit (107.1) and a second seat fixation unit (107.2) located at said compartment floor (103.3); - said first seat fixation unit (107.1) being located at said first compartment side (103.1) at a first distance from said centerline plane (102.1); - said second seat fixation unit (107.2) being located at said second compartment side (103.2) at a second distance from said centerline plane (102.1); - said seat fixation device further comprising a third seat fixation unit (107.3) associated to said first seat fixation unit (107.1), and - said seat fixation device further comprising a fourth seat fixation unit (107.4) associated to said second seat fixation unit (107.2); - said third seat fixation unit (107.3) being located in the region of a first side wall (103.4) of said compartment on said first compartment side (103.1); - said third seat fixation unit (107.3), in said transverse direction, having a third distance from said first seat fixation unit (107.1); - said fourth seat fixation unit (107.4) being located in the region of a second side wall (103.5) of said compartment on said second compartment side (103.2); - said fourth seat fixation unit (107.4), in said transverse direction, having a fourth distance from said second seat fixation unit (107.2); characterized in that - said second distance ranges from 125% to 225% of said first distance, and - said first distance and said second distance are selected as a function of an individual seat width, in said transverse direction, of an individual passenger seat (306.1) to be used by a single passenger and to be supported via said second seat fixation unit (107.2) or said fourth seat fixation unit (107.4); wherein - said first distance and said second distance are selected such that said third distance ranges from 120% to 160% of said individual seat width; and/or - said first distance and said second distance are selected such that said fourth distance ranges from 70% to 110% of said individual seat width. - a passenger compartment with a compartment floor (103.3) and - a seat fixation device located within said passenger compartment; - said passenger compartment defining a longitudinal direction, a transverse direction and a height direction, a centerline plane (102.1), a first compartment side (103.1) and a second compartment side (103.2); - said centerline plane (102.1) running parallel to said longitudinal direction and said height direction; - said first and second compartment side (103.1, 103.2) being located at opposite sides of said centerline plane (102.1); - said seat fixation device comprising a first seat fixation unit (107.1) and a second seat fixation unit (107.2) located at said compartment floor (103.3); - said first seat fixation unit (107.1) being located at said first compartment side (103.1) at a first distance from said centerline plane (102.1); - said second seat fixation unit (107.2) being located at said second compartment side (103.2) at a second distance from said centerline plane (102.1); - said seat fixation device further comprising a third seat fixation unit (107.3) associated to said first seat fixation unit (107.1), and - said seat fixation device further comprising a fourth seat fixation unit (107.4) associated to said second seat fixation unit (107.2); - said third seat fixation unit (107.3) being located in the region of a first side wall (103.4) of said compartment on said first compartment side (103.1); - said third seat fixation unit (107.3), in said transverse direction, having a third distance from said first seat fixation unit (107.1); - said fourth seat fixation unit (107.4) being located in the region of a second side wall (103.5) of said compartment on said second compartment side (103.2); - said fourth seat fixation unit (107.4), in said transverse direction, having a fourth distance from said second seat fixation unit (107.2); - said second distance ranges from 125% to 225% of said first distance, and - said first distance and said second distance are selected as a function of an individual seat width, in said transverse direction, of an individual passenger seat (306.1) to be used by a single passenger and to be supported via said second seat fixation unit (107.2) or said fourth seat fixation unit (107.4); - said first distance and said second distance are selected such that said third distance ranges from 120% to 160% of said individual seat width; and/or - said first distance and said second distance are selected such that said fourth distance ranges from 70% to 110% of said individual seat width.