Saturday’s Coke Zero 400 at Daytona International Speedway (please don’t call it the Pepsi 400 — Firecracker 400, however, will be accepted) marks the halfway point in the 2012 NASCAR Sprint Cup season.

The year’s third restrictor plate race was once run on the morning of the fourth to beat the oppressive North Florida heat and humidity. “On the track by 11:00, on the beach by 2:00,” was the mantra before lights and night racing. NASCAR’s signature speedway has endured wildfires and truck fires in recent years, as well as Turn Two disemboweling itself in the middle of an event, but all should be solid as we’re knee-deep in the Summer Stretch. And as the championship chase begins to take shape, the contenders have begun to separate themselves from the pretenders. Unless, of course, it’s 2011 and you’re Tony Stewart, stumbling into the Chase like the town lush, but suddenly start running like Tony Stewart once the title fight begins.