Hi, I'm currently working on this DMC DeLorean.
The 3D model is made by Daniel Zhabotinsky, downloadable from Sketchfab:
https://sketchfab.com/3d-models/81-sportcar-custom-low-poly-model-ef6411864cd24046aad6ae75dbdb7ea7
Wheels are modeled by me, as the factory wheels were not available with the model.

Good job, maybe the body paint can be matted?

Or you can use a darker reflection colour to reduce the amount of reflecitons

I'm not a fan of the current matte material, it really lacks of depth, hence why I tried something different. Not so long ago I made a test in the Editor, and with the new upcoming shaders I can make the steel body look like this which I think it's really nice, but the new shaders are not in the game yet so we have to wait for this result.