According to BizJournals, Toyota is now the "exclusive auto partner" of the Niners as part of a multimillion dollar deal. Part of the agreement is that Toyota will sponsor the red zone ? the area between the 20-yard line and the end zone ? at San Francisco's brand new Levi's Stadium, meaning a massive, distracting graphic will appear on the screen any time a team reaches that section of the field. 

Luckily, Toyota's red-zone advertising will show up only on the local, KPIX broadcast of preseason games; it is not a national deal. Still, you have to imagine that this is a glimpse of the future, and one that NFL fans aren't going to be particularly pleased about.

Here are two screengrabs, via SB Nation: