The project “Market Research and Definition of Procedure to Comparison of Comfort Measuring Systems for a Vehicle Cabin” serves objective measurement tools for evaluation of thermal comfort provided by heating, ventilation and air conditioning systems (HVAC) in vehicle cabins during the Worldwide Harmonized Light-Duty Vehicles Test Procedure (WLTP) and Real Driving Emissions (RDE) tests. For this, several passenger cars with different powertrain systems and different equipped cabins were tested. Hence a steady level of thermal comfort and objective and comparable results of the energy consumptions were ensured. The output of the project focuses on the definition of the procedure to compare different thermal comfort measuring systems available on the market from an economic as well as a scientific point of view.