Downloadable mobile applications for tracking gas mileage and fill-up of one or multiple vehicles; Downloadable mobile applications for tracking vehicle maintenance; Downloadable mobile applications for giving vehicle statistics for distance, fuel record and cost; Downloadable mobile applications for customizing vehicle service reminders; Downloadable mobile applications for backing up and restoring vehicle data; Downloadable mobile applications for showing vehicle cost, miles per gallon, volume on charts; Downloadable mobile applications for showing different vehicle costs on bar charts or pie charts; Downloadable mobile applications for storing vehicle data, namely, vehicle identification number, license plate; Downloadable mobile applications for providing international Units for vehicle users to choose from