The Oscar Mayer Wienermobile probably qualifies as guerrilla marketing. Making me want to ride in it even more.
I actually saw the Wienermobile on the highway once. Route 128 South in Woburn, Massachusetts, to be exact. Frankly (no pun intended), considering the rubber-necking all of us who saw it were doing, it's a wonder the Wienermobile doesn't leave a trail of car wrecks in its wake.
Source: Eat Liver