CGI live integration, render in keyshot,
tracking : nuke
compositing : after effect
render in keyshot
watch : YouTube link
https://youtu.be/TnUcK3TCmzs
Any suggestion?
I would suggest far more render samples and better background integration. The car back reflections don't match the environment. You can compose this reflections in post using clown and normal passes - but this would require high compositing skills.
Search the internet for "light wrap technique" in your compositing software. That might help a little.
It looks like the car is sliding in the back. Did you used a lens grid before tracking? (https://www.youtube.com/watch?v=LsoaGOd-NB4)