Burning Questions Midway Through the NASCAR Sprint Cup Series Season

From Daytona to Napa Valley, and from Fort Worth to Pocono, we have seen plenty from this 2013 NASCAR Sprint Cup Series season.There was Jimmie Johnson's assertion that his reign as the sport's titan wasn't waning in the season-opening Daytona 500. There was the hype around Danica Patrick. There was Denny Hamlin's serious injury. There was Brad Keselowski's vocal outburst. And there was NASCAR's new Gen-6 model of race car that officials in the offseason stopped just short of claiming would establish world peace.Then Matt Kenseth had a serious penalty (later mostly revoked), Toyota's engine program went sour and NASCAR's restart policy became a heavy factor in race outcomes.And all of that occurred just halfway through this season's schedul...

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