GTASA is as obsolete as pong. GTAIV doesn't work hardly at all. And 95% of the people playing any GTA are deathmatchers not roleplayers, the only people who roleplayed when we tried IVMP were our own members, pubs came in and ran over anything they saw.
Arma2 doesn't have the fancy physics of IV and you can't have nearly the level of detail into models as IV, but you can script the hell out of it to change the game entirely to fit your needs. And the huge plus to Arma is that it's stable, IVMP you crashed every so often because the games MP was an afterthought and they never bothered to fix it up.
I'm not sure where the GTA downloads are, I was looking for them the other day and didn't find any. Those are all cars Yak made for us but we couldn't use them with IVMP as ELS and MP don't mix well.
well thanks for the vehicles that you did mod, they were really good. 
