sentences:  KONI became series sponsor for the start of the 2007 season when the series became known as the KONI Challenge Series, before renaming once more prior to the start of the 2009 season as the KONI Sports Car Challenge.The series name was once again changed for the 2010 season to Continental Tire Sports Car Challenge.In 2019, the series rebranded again after Michelin was selected to become the new official tire supplier of the series.