This is the 1:100 (15mm) Austin-Putilov armoured car from Peter Pig. I haven't yet given it any markings, because I haven't quite decided how I'm going to use it — early Soviet or White Russian markings would be equally appropriate I think, but I might go with something more generic in case I decide to give it to some tin-pot warlord somewhere.
I've been gradually putting together a mish-mash of vaguely WW1-ish 15mm figures and vehicles for a while now, but have never actually done anything with them as far as wargaming goes. Now I'm thinking that Back of Beyond-ish skirmishing might suit me very well.