Both conversions of the Matchbox Puma, they are definitely rough-and-ready wargames models.
The one on the left has a turret from an Italeri (I think) SdKfz250/9 that I built as the standard open-topped variant. The hull came from a friend and has a thick teenage enamel paint job.
The one on the right has a turret I scratch-built, probably not far off my teenage years. This model has sat, more or less complete, in a storage box for decades. Only now has it acquired a suitable colour scheme to join my mid-war Germans.