private void formViewFinishedRaces_FormClosing(object sender, FormClosingEventArgs e)
 {
     _raceRepository.DeleteObserver(this);
 }
 private void formViewStandings_FormClosing(object sender, FormClosingEventArgs e)
 {
     _driverRepository.DeleteObserver(this);
     _raceRepository.DeleteObserver(this);
 }