A communication unit includes a mobility agent for providing handoffs between a cellular network and a wireless local area network. A method is provided for dynamically setting engine parameters in a vehicle. polymer-platelet particle nanocomposite comprising the steps of: melt mixing platelet particles with a matrix polymer-compatible oligomeric resin to form an oligomeric resin-platelet with a high molecular weight matric polymer, thereby increasing the molecular weight of the oligomeric resin-platelet particle composite and producting an exfoliated, high I. The distance sensors are connected to analysis electronics.