Simplify the following text for a Grade 8 native English-speaking person.
Original: On August 4 , 2007 , Kevin Harvick made history by winning the first NASCAR Busch Series ( now Nationwide Series ) race at Circuit Gilles Villeneuve in what was one of the most controversial NASCAR races ever .
Simplified: This would be NASCAR 's first race in Canada . On 4 August 2007 , Kevin Harvick made history by winning the first Nationwide Series ( then Busch Series ) race at Circuit Gilles Villeneuve .