South Park Season 14 Episode 8 (South Park s14e08) with title “Poor And Stupid” aired on Wednesday, October 6th 2010 at via Network.10:00 pm Comedy Central
Here is summary for South Park Season 14 Episode 8 :

It’s been Eric Cartman’s dream to join NASCAR all his life. He is willing to do whatever’s necessary to achieve his goal. Cartman hires Butters as his pit boss to gear up for the race of his life.