Simplify the following text for a Grade 8 native English-speaking person.
Original: He currently drives the # 56 NAPA Auto Parts Toyota Camry for Michael Waltrip Racing and the # 99 Toyota for Pastrana-Waltrip Racing part-time .
Simplified: Truex Jr. drives the # 56 NAPA Auto Parts Toyota Camry for Michael Waltrip Racing in the NASCAR Sprint Cup series .