Before revision:  This paper explores the dynamics of VANETs in urban environments  . Using both real and realistic mobility traces, we study the networking shape of VANETs in urban environments under different transmission and market penetration ranges.
After revision:  This paper explores the dynamics of VANETs in urban environments and investigates the impact of these findings in the design of VANET routing protocols . Using both real and realistic mobility traces, we study the networking shape of VANETs in urban environments under different transmission and market penetration ranges.