Complex sentence: The team was disqualified from the remainder of the World Championship and lost the 13 points they had already gained, though they were allowed to and did continue to race, though they did not appear for the final three races of the season.
Split into simpler sentences: The team was disqualified from the remainder of the World Championship and lost the 13 points they had already gained. They were allowed to and did continue to race, though they did not appear for the final three races of the season.