As the name suggests, this will tune the clear coat for you. Next, scroll down to the bottom and select the advanced properties drop down menu, then scroll to the bottom again until you see 'clear coat map'. Do the same as you did for 'metallic map' by putting the 'factor' slider to 1.000. After that you need to scroll some more until you see 'roughness map'. Next, you need to scroll down until you see 'metallic map' put the 'factor' slider all the way to the right until it says 1.000. Next go down until you see a check box that says 'instance Basecolor' click it. Press the plus button once and the minus button once and the car should turn white. Next, you will see a plus and minus appear after you press the green button. After you have selected the correct texture, you will want to press the green button below that says ' Switch to V1.5 (PBR)'.