Hey SpaceSandwich, sorry about the late response. Here is the BP setup for the sound:
It is mostly what you see in FMOD tutorials really. Engine and exhaust get activated when you hit R, then i set their intensity, vs. depending on whether the camera is in or out of the car. Most of the work is in FMOD Studio and i was actually thinking about sharing it but recently my GPU died and i had some other issues so i had to format the computer, during which i lost the FMOD project… Howerever, let me know if you have any other questions on FMOD side of things and i’ll try to help as much as i can.
@; It isnt a matter of not having the manpower. I was referring to not being able to use a Dodge Challenger as a brand in a game. 
Regarding the screenshots, you are right. They are lacking reflections since the environment doesnt have much to reflect. I’ll get better ones when i get a new GPU.