AVONDALE, Ariz.—The fans held their $4 beers, sharpies, and phones as they stacked four rows deep seeking just a glimpse of NASCAR champion Chase Elliott inside his garage stall. The crowd erupted in cheers as the No. 9 Chevrolet was pushed into the bay. It was empty, but no one seemed to care all that much. Everyone was just happy to be at the big show. A year after the pandemic forced renovated Phoenix Raceway to host its first championship weekend in front of only 8,000 fans a day, the full $178 million facelift is on display. Every single allotted space has been sold for Sunday, when the Cup title will be decided in front of about 60,000 spectators. They’ll bring their koozies, coolers, some will sit on Rattlesnake Hill, and, yes, some will even wear their “Let’s Go, Brandon” T-shirts despite NASCAR’s disapproval. Elliott, Kyle Larson, Martin Truex Jr., …