[OKStyle]

Ну раз никто ничего умного предложить не смог, то примерно так:

Code:

new Veh[10], VehSeats[MAX_VEHICLES][4];

Veh[0] = CreateVehicle(...);
...
Veh[9] = CreateVehicle(...);

for(new i = Veh[0]; i <= Veh[9]; i++)
{
	if(GetVehicleModel(i) == 0) continue;
	for(new j = 0; j < 4; j++) VehSeats[i][j] = INVALID_PLAYER_ID;
}

Code:

for(new i = GetMaxPlayers() - 1; i != -1; i--)
{
	if(!IsPlayerConnected(i) || IsPlayerNPC(i)) continue;
	for(new j = Veh[0]; j <= Veh[9]; j++)
	{
		if(GetVehicleModel(j) == 0) continue;
		for(new k = 0; k < 4; k++)
		{
			if(VehSeats[j][k] != INVALID_PLAYER_ID) continue;
			PutPlayerInVehicle(i, j , k);
		}
	}
}