[Ash.]

pawn Код:

new Float:MostHealth, Float:vHealth, vDriver, veh;
for(new i; i < MAX_VEHICLES; i++)
{
     GetVehicleHealth(i, vHealth);
     if(vHealth > MostHealth) 
     {
          MostHealth = vHealth;
          veh = i;
     }
}
vDriver = GetVehicleDriver(veh);
SetPlayerHealth(vDriver, (MostHealth/10));

That should, in theory, work. However it will work for all vehicles, not just ones in a certain area or assigned to a certain array, for example.

Modify it to suit your needs.