Now that the world knows that the Pittsburgh Steelers and Green Bay Packers will be vying for the Super Bowl this year, the only thing left to determine is "who's running commercials?"

Year-in and year-out companies like Anheuseur-Busch, Coca-Cola and Disney are sure bets, but the industry that may get the most airtime this year is automotive, according to the New York Times. Reflecting the recent rise in sales, nine brands have reportedly bought airtime for the big game, up from just six in 2010. And that doesn't even count car-related companies like Bridgestone and CarMax.

Two of those brands are already making their presence felt. Mercedes-Benz is planning its first TV spot ever at the Super Bowl in celebration of the company's 125th anniversary. They're leading up to the big game by giving away cars via a social media contest designed to encourage people to watch their sixty-second spot in the fourth quarter.

Meanwhile, Hyundai's budget brand Kia is looking to capitalize off of last year's successful spot, which featured a crew full of stuffed animals taking the Kia Sorento for a joyride. Kia's VP of marketing, Michael Sprague, told the news source that the commercial helped the Sorento become the top-selling vehicle for every month in 2010.