Last year, General Motors (NYSE:GM) said that it would pass on buying ad time during the Super Bowl, saying that it couldn't "justify" the expense. But last week, GM confirmed that it had changed course, and was planning to run ads for its Chevrolet brand during this season's Super Bowl XLVIII.

The all-new Silverado is just one of the new Chevrolets that is likely to be featured in GM's upcoming Super Bowl ads. Photo credit: GM.

What's the deal? As Fool contributor John Rosevear explains in this video, the deal is that this year GM has an important story to tell -- and despite the expense, Super Bowl ads are a good way to tell it.

Fool contributor John Rosevear owns shares of General Motors. You can connect with him on Twitter at @jrosevear. The Motley Fool recommends General Motors. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.