Recent Years compared to the Current Scenario, The Explosive Growth of devices connected and controlled by Internet is the major significance of Internet of Things (IOT). One such big example is Automotive Industry. This industry has the potential to become an IOT Champion among other industries and fuel the IOT Cloud Services Adoption among Car owners and walkers alike. Vehicles are progressively being associated with the Internet of Things which empower them to give Universal Access to Data to Drivers and Travellers while Moving. As the connectivity of Vehicles keeps increasing in numbers,traditional concepts of Vehicles has to be introduced with new layers which includes Versatile data transfer among Vehicles, Consistency, Security, Toughness, Humans and roadside frameworks of Vehicular Systems shall be taken into consideration. In this Unique situation, the first idea of Vehicular Ad-Hoc networks(VANETs) is being changed into another idea called Internet of Vehicles(IOV).The advent of IOT has changed the Traditional vehicular networks in to intelligent vehicular networks called Internet of vehicles. Each entity in IOV is connected to the Internet. In IOV, each vehicle is responsible for transmitting and receiving the information. In an Environment where vehicles are mobile and at the same time exchanging information to ensure safe driving on the roads and to minimize road accidents. It is very necessary to provide better services within the limited accessibilities. Hence QOS plays a vital role in IOV.This paper addresses the QOS challenges and its significance in IOV. Also, this paper also discusses the measurement parameters that could deliberately effect the performance of IOV.