Capping a noticeable 1980s vibe running throughout this year's festival, the Cars played a typically solid but staid set Sunday afternoon -- much like their May set at the Riviera, just outdoors. Opening with their classic "Let the Good Times Roll," the most sedate party anthem ever, the reunited quartet (sans original singer-bassist Ben Orr, who died in 2000) see-sawed between MTV-era hits -- "My Best Friend's Girl," "You Might Think," "Magic," "Let's Go," etc. -- and tracks from their new album, "Move Like This." As usual, Ric Ocasek hardly moved, and the set glided along with great songs but zero showmanship. "I like the nightlife, baby," Ocasek sang as he squinted into the late afternoon sun.