Simplify the following text for a Grade 6 native English-speaking person.
Original: The road car engine aspect of the business was split from the racing division following the sale of the engineering division of Cosworth to VW\/Audi in September 1998 and re-named Cosworth Technology , before being acquired by MAHLE in 2005 .
Simplified: The road car engine division of Cosworth was re-named Cosworth Technology . It was sold to MAHLE in 2005 .