new TCar[1];

TCar[0] = AddStaticVehicle(420,-2482.4937,2242.3936,4.6225,179.3656,6,1);
AddVehicleComponent(TCar[0], 1010);

Ко всем new добавляем:

new Timer1122[MAX_PLAYERS];
Ко всем forward'ам добавляем:

forward UnSurfCar(carid);
В public OnPlayerDisconnect   
Добавляем:

KillTimer(Timer1122[playerid]);
В public OnPlayerStateChange   
Добавляем:

if(newstate == PLAYER_STATE_DRIVER)   
{   
Timer1122[playerid] = SetTimerEx("UnSurfCar",500,1,"i",GetPlayerVehicleID(playerid));   
}   
if(newstate == PLAYER_STATE_ONFOOT && oldstate == PLAYER_STATE_DRIVER)   
{   
KillTimer(Timer1122[playerid]);   
}

Создаём паблик:

public UnSurfCar(carid)   
{   
for(new i = 0; i<GetMaxPlayers(); i++)   
{   
if(GetPlayerSurfingVehicleID(i) == carid)   
{   
new Float:p[3]; GetPlayerPos(i,p[0],p[1],p[2]);   
GetXYInBackOfPlayer(i,p[0],p[1],5.0);   
SetPlayerPos(i,p[0],p[1],p[2]);   
}   
}   
return;   
}

И в самый конец мода добавляем:

stock GetXYInBackOfPlayer(const playerid, &Float:x, &Float:y, const Float:distance){   
new Float:a; GetPlayerPos(playerid, x, y, a); GetPlayerFacingAngle(playerid, a);   
if (IsPlayerInAnyVehicle(playerid)) { new vid=GetPlayerVehicleID(playerid);   
if (vid>0 && vid<=MAX_VEHICLES)GetVehicleZAngle(vid, a);}   
x -= (distance * floatsin(-a, degrees)); y -= (distance * floatcos(-a, degrees));}