[Konstantinos]

Hook the functions that create/add a vehicle. An example:

pawn Код:

stock HF_CreateVehicle(modelid, Float:x, Float:y, Float:z, Float:angle, color1, color2, respawn_delay)
{
    if (modelid == 495) SetVehicleHealth(CreateVehicle(modelid, x, y, z, angle, color1, color2, respawn_delay), 150);
    else CreateVehicle(modelid, x, y, z, angle, color1, color2, respawn_delay);
    return 1;
}

#if defined _ALS_CreateVehicle
    #undef CreateVehicle
#else
    #define _ALS_CreateVehicle
#endif

#define CreateVehicle HF_CreateVehicle

Do the same for AddStaticVehicle and AddStaticVehicleEx too.

And when a vehicle respawns:

pawn Код:

public OnVehicleSpawn(vehicleid)
{
    if (GetVehicleModel(vehicleid) == 495) SetVehicleHealth(vehicleid, 150);
    return 1;
}