[Kindred]

pawn Код:

vehInfo[PlayerVehicleID1[playerid]][VehicleDealership] = 1;

I've honestly never used an enum like this, but the reason it says "too many subscripts" could be because of the extra [playerid] you placed in the first area (MAX_CARS).

Plus, if you don't mind, can I see where you have PlayerVehicleID1? I don't really think it makes a difference whether I see it or not, but I don't see why you have that in the place of MAX_CARS.