A method for operating a virtual reality output device, which is associated with a first motor vehicle, wherein the method comprises the following steps performed by a synchronizing device: - ascertaining a planned navigation route of the first motor vehicle as a reference navigation route (28, S1), - determining a second motor vehicle, wherein a planned navigation route of the second motor vehicle satisfies a preset synchronization condition; wherein the preset synchronization condition presets that a duration of a travel of the second motor vehicle on the navigation route thereof is within a preset tolerance range around a reference trip duration of a travel of the first motor vehicle on the reference navigation route (28, S2), and - scaling a track length of the navigation route of the second motor vehicle to a track length of the reference navigation route (28, S3); - determining at least one track section of the reference navigation route, which satisfies a preset homogeneity criterion, as a synchronizable track section; wherein the preset homogeneity criterion presets a preset minimum of coincidence of a track layout of the track section of the reference navigation route with a track layout of a track section of the scaled navigation route, - associating the track section of the scaled navigation route with the synchronizable track section, - providing an output content, which describes a virtual trip on a virtual navigation route, which represents the reference trip duration and the track layout of the reference navigation route, for outputting by the virtual reality output device during the travel of the first motor vehicle, - if the first motor vehicle is on a synchronizable track section and if the second motor vehicle is on the track section of the scaled navigation route associated with the synchronizable track section: changing the provided output content, wherein the changed output content describes an avatar, which represents the second motor vehicle and a captured motor vehicle movement of the second motor vehicle. - ascertaining a planned navigation route of the first motor vehicle as a reference navigation route (28, S1), - determining a second motor vehicle, wherein a planned navigation route of the second motor vehicle satisfies a preset synchronization condition; wherein the preset synchronization condition presets that a duration of a travel of the second motor vehicle on the navigation route thereof is within a preset tolerance range around a reference trip duration of a travel of the first motor vehicle on the reference navigation route (28, S2), and - scaling a track length of the navigation route of the second motor vehicle to a track length of the reference navigation route (28, S3); - determining at least one track section of the reference navigation route, which satisfies a preset homogeneity criterion, as a synchronizable track section; wherein the preset homogeneity criterion presets a preset minimum of coincidence of a track layout of the track section of the reference navigation route with a track layout of a track section of the scaled navigation route, - associating the track section of the scaled navigation route with the synchronizable track section, - providing an output content, which describes a virtual trip on a virtual navigation route, which represents the reference trip duration and the track layout of the reference navigation route, for outputting by the virtual reality output device during the travel of the first motor vehicle, - if the first motor vehicle is on a synchronizable track section and if the second motor vehicle is on the track section of the scaled navigation route associated with the synchronizable track section: changing the provided output content, wherein the changed output content describes an avatar, which represents the second motor vehicle and a captured motor vehicle movement of the second motor vehicle.