While you refuel for gas ,why not refuel for information or download vehicle data ? This paper analyzes in extensive detail the user segmentation by vehicle usage , service offering , and full business models from WLAN hot spot services delivered to vehicles (private, professional , public) around gas stations . Are also analyzed the parties which play a role in such service authorization, provisioning and delivery , with all the dependencies modelled by attributed digraphs . Sevice planning is included as to WLAN base station capabilities . Five year financial models (CAPEX,OPEX) , and data pertain to two possible service suppliers : multi-service oil companies, and mobile service operators (or MVNO) . Model optimization on the return-on-investment (ROI) is carried out for different deployment scenarios ,geographical coverage assumptions, as well as tariff structures . Comparison is also being made with public GPRS data services ,as precursors for 3G services,and the effect of WLAN roaming is analyzed .Analysis shows that due to manpower costs and marketing costs , suitable ROI will not be achieved unless externalities are accounted for and innovative tariff structures are introduced . Open issues and further research are outlined . Further work is carried out,also with automotive electronics sector , wireless systems providers , wireless terminals platform suppliers , and vehicle manufacturers .