Vans are good alternatives to Buses and Taxis.
Van portraits individualism and it is much used for advertising purposes. Van are also suitable for campaigns or roadshows. Comparing with Taxi, Van have much larger size where advertisements can be displayed. Similarly to Taxi, it goes everywhere and it's path is not fixed. The height is at eye level with most cars and vehicles alike.
Van are the Medium Size media which does NOT compromise it's exposure and value.