Simplify the following text for a Grade 2 native English-speaking person.
Original: In the race , he finished in seventh place , but was disqualified after the race for having an underweight car . Villeneuve decided to leave the BMW Sauber team soon after the race , and Kubica 's position in the team for the remainder of the season was confirmed by BMW .
Simplified: It was first win in the race for BMW .