[Threshold]

pawn Code:

new bool:modelfound = false;
for(new i = 0; i < sizeof(RandomRegularVehicle); i++)
{
    if(CarInfo[idx][cModel] != RandomRegularVehicle[i][0]) continue;
    modelfound = true;
    break;
}
if(!modelfound) return SendClientMessage(playerid, COLOR_RED, "You cannot sell this type of vehicle here");