Simplify the following text for a Grade 3 native English-speaking person.
Original: In addition to his recordings and performances , Robbins was an avid race car driver , competing in 35 career NASCAR races with six top 10 finishes , including the 1973 Daytona 500 .
Simplified: He drove in many NASCAR races . He was a driver in the 1973 Daytona 500 .