Simplify the following text for a Grade 9 native English-speaking person.
Original: Michael Curtis Waltrip ( born April 30 , 1963 ) is a semi-former professional race car driver and co-owner of Michael Waltrip Racing , and a published author .
Simplified: Michael Curtis Waltrip ( born April 30 , 1963 in Owensboro , Kentucky ) is an American race car driver and owner of his team called Michael Waltrip Racing .