[PepsiCola23]

with this you are getting the closest vehicle.

PHP Code:

GetClosestVehicle(playerid)
{
    new closestdist = 999999999, closestvehicle = -1;
    new Float:x[2],Float:y[2],Float:z[2],distance;
    for(new i; i < MAX_VEHICLES; i++)
    {
        GetVehiclePos(i,x[0],y[0],z[0]);
        //if(x[0] == 0.0 && y[0] == 0.0 && z[0] == 0.0) return -1;
        GetPlayerPos(playerid,x[1],y[1],z[1]);
        distance = floatround(GetDistanceBetweenPoints(x[0],y[0],z[0],x[1],y[1],z[1]));
        if(distance < closestdist) {
            closestdist = distance;
            closestvehicle = i;
        }
    }
    return closestvehicle;
} 


it simply loops trought the vehicles and sees what the nearest vehicle is.

so you can use this in your cmd like

PHP Code:

fbiranger = GetClosestVehicle(playerid); 


then you need to use

PHP Code:

IsPlayerNearVehicle(playerid, fbiranger, range) 


with this useful function

PHP Code:

IsPlayerNearVehicle(playerid, vehicleid, Float:range)
{
    new Float:X, Float:Y, Float:Z;
    GetVehiclePos(vehicleid, X, Y, Z);
    if(IsPlayerInRangeOfPoint(playerid, range, X, Y, Z))return true;
    else return false;
} 


and you need to do another check to see if the car has the model of the fbi rancher.

PHP Code:

GetVehicleModel 


You have the cars list here :

Code:

https://sampwiki.blast.hk/wiki/Vehicle_Model_ID_List