/**
  * Helper to get new participant instance
  *
  * @param  string        $name
  * @param  string        $guid
  * @param  string        $car
  * @param  string        $team
  * @param  int           $vehicle_ballast
  * @return Participant
  */
 protected function getParticipant($name, $guid, $car, $team = null, $vehicle_ballast = null, $vehicle_skin = null)
 {
     // Create driver
     $driver = new Driver();
     $driver->setName($name)->setDriverId($guid);
     // Create participant and add driver
     $participant = Participant::createInstance();
     $participant->setDrivers(array($driver))->setFinishStatus(Participant::FINISH_NORMAL)->setTeam($team);
     // Create vehicle and add to participant
     $vehicle = new Vehicle();
     $vehicle->setName($car);
     // Has ballast
     if ($vehicle_ballast) {
         $vehicle->setBallast($vehicle_ballast);
     }
     // Has skin
     if ($vehicle_skin) {
         $vehicle->setSkin($vehicle_skin);
     }
     $participant->setVehicle($vehicle);
     return $participant;
 }