Simplify the following text for a Grade 7 native English-speaking person.
Original: After a fifteen-year relationship with the McLaren team , Mercedes-Benz ( through parent Daimler AG ) , in partnership with Aabar Investments , reached an agreement to purchase a 75.1 % stake ( Daimler : 45.1 % ; Aabar : 30 % ) , in the Brawn GP team , pending corporate and regulatory approval .
Simplified: Mercedes-Benz , through its parent Daimler AG , and in partnership with Aabar Investments , reached an agreement to purchase the Brawn GP team . Daimler would buy 45.1 % of Brawn , and Aabar would buy 30 % .