You see, the billboard vs. car top is fascinating me. More than in the countryside or a small town, the city still has the flair of unlimited possibilities, and in this context advertisements seem to sit in a much more suitable habitat than in a town of let’s say 15.000 inhabitants. What would be just a reason for laughter there looks like a real possibility when proposed in the glamourous environment of the city: you just need the right shoes and your posterieror will magically reshape…

I am not always fond of small town / countryside life, but its more down-to-earth attitude is very sympathetic.