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In the past decade automobiles have evolved from mechanical devices into very complex electro-mechanical systems. With the increasing number of ECUs comes the complexity of connecting them to have a meaningful interaction with the rest of the system. In this scenario there is no one size fits all approach. ECUs have different communication requirements based on bandwidth, reliability, speed and security. Infotainment ECUs need high bandwidth to stream the audio and video content but can be tolerant to frame drops and latency. Engine Control ECUs need less bandwidth but must have high reliability. Hence, when it comes to In-Vehicle network a variety of networks co-exist such as Ethernet, CAN and MOST serving various purposes. This paper attempts to make a case to add low power wireless network to the mix to optimize the space and cost factor and looks at applications that are appropriate for such networks.