Social City: Free Honda dealership when you watch a Honda Odyssey commercial
As for the virtual dealership's stats, it's a Leisure-type that offers no XP, but will give your town +10,000 Happiness Points.
To take advantage of this offer, open up your game and view "Page A" of your in-game gazette. If the gazette doesn't appear immediately, then click on the "News" icon in the control bar. The advertisement should be on the gazette's front page.