I don't know if we can do or should do anything about this but ...Seems many Mercedes 190SL that appear in the pics with open or with closed soft-top have W121.042 chassis code https://www.imcdb.org/vehicles_make-Mercedes-Benz_model-W121.042.html . But this code means they are definitely the roadster version and not the W121.040 hardtop version. Which may or may not be true as their hardtop could be stored back at the person's garage W121.040 hardtops could be had with or without a soft-top as well so that complicates matters... So we don't know if these pictured were indeed the roadster or the hardtop version. And many pics are quite bad to say if open top cars have at least no retracted soft-top so these would be hardtops as well (and could we still tell?). We can only tell for those that a hardtop appears in the picture (I fixed all those). I guess a solution would be to name those just W121 but then there would be no roadsters at all... I hope my point came across as now I look back it all looks a bit confusing