42 Remote maintenance of vehicle engines through computer network systems, remote vehicle engine optimization services through integrated components, namely transmitters, receivers and microprocessors; remote diagnosis of motor vehicles and motor vehicle engines to determine the need for repair or maintenance; convenience services through components integrated into motor vehicles, namely, transmitters, receivers, microprocessors, software, cellular phone, radios, and electrical architecture all interacting with wireless networks, namely analyzing data sensed from the vehicle and providing diagnostic evaluation, and providing suggestions as to types of maintenance, with suggestions as to the closest service location that has an open service bay and/or required parts in stock; providing temporary use of non-downloadable cloud-based software for allowing wireless over-the-air updates to land vehicles in real time