[Konstantinos]

You can check if the player is in one of those two checkpoints you created for the car CPs. You need to store the cpid to a variable, so:

PHP код:

// variable:
new CarCP[2][MAX_PLAYERS];
public OnPlayerConnect(playerid)
{
    CarCP[0][playerid] = CPS_AddCheckpoint(88.9491,2051.5032,18.0701, 3.7, 40);
    CarCP[1][playerid] = CPS_AddCheckpoint(-158.9680,2634.4512,63.5709, 3.7, 40);
    SpawnedCar[playerid] = 0;
    return 1;
}
public OnPlayerEnterCheckpoint(playerid)
{
    if (CPS_IsPlayerInCheckpoint(playerid, CarCP[0][playerid]) || CPS_IsPlayerInCheckpoint(playerid, CarCP[1][playerid]))
    {
        PlayerPlaySound(playerid, 1057, 0.0, 0.0, 0.0);
        ShowPlayerDialog(playerid, 2386, DIALOG_STYLE_LIST, "Cars", "Landstalker  ($125,000)\nElegy ($200,000)\nInfernus  ($500,000)\nSultan   ($350,000)\nFlash   ($300,000)\nBuffalo   ($475,000)\nMonster   ($775,000)\nCheetah   ($375,555)\nSlamvan   ($430,000)\nFortune   ($450,550)\nBullet   ($475,550)\nAdmiral   ($175,000)\nHotknife   ($490,000)\nElegant   ($403, 500)\nSuper-Gt   ($498,500)\nZr-350   ($475,550)", "Buy", "Cancel");
    }
    return 1;
}