This is a Volvo PV 831, built from the end of the 1930s, through the ’40s and ’50s, primarily as a taxi. However this PV 831 has swapped one form of public transport for another, as there won’t be any fare-paying passengers sitting in its back seat.

Instead this PV 831 has been adapted to run on the rail tracks, in order to perform its job as an inspection vehicle for Sweden’s railways. Built by Flickr’s SvenJ, a third-party motor and bluetooth receiver bring the model to life, and there’s more to see at his ‘Volvo PV 831 Railroad Inspection Car’ album. Click the link above to inspect some Swedish tracks in the 1940s.