Floating Content is an attractive model for deploying and sharing information between mobile devices in a completely decentralized manner. For vehicular city-scale applications, the model has many applications. In this paper we conduct an analysis of the feasibility of such a model to support the sharing and dissemination of localized information, using realistic mobility traces in two different cities. As our experimental results reveal, the feasibility in urban environments is influenced by several factors. A high density inside the anchor location sustain the life of the information regardless the radius size. Having a big radius may cluster more vehicles and thus, increases the probability of floating. The radio range can also affect information sharing. A small radio range compared to the information availability range may prevent the application to spread content in the entire zone and rely on vehicle density. For all these, we provide experimental evidence.