Automakers seem blase about the Super Bowl this time around. NBC still has eight to ten 30-second spots left to sell for its 2015 broadcast of the game and has sold about 90% of the inventory available. But Seth Winter, EVP of sales for both NBC Sports and NBCUniversal News Group, said market pressures have halved advertising partners this year. “We would be in a far, far more accelerated sell-out if the automotives were just kind of advertising where they were.”