Weird loud clicking sound while car is in movement, what could it be ?
 

https://youtu.be/ho7p23iUjcg

So today out of nowhere my 2018 nismo with 12,000miles is making a sound as if something is stuck under the right side of the car and is continuously bouncing and causing a clicking like sound. I have attached a video, if I had to guess it was coming from the bottom right of the car near the wheels because I cannot hear it out the left. It never made this sound before until today and the car is still basically new, it’s not the engine. Any advice would be great before I have to take it to the dealership ):

Hmm, sounds like the undertray is broke under the front of the car. You get crazy stuff when that goes wrong due to the aerodynamics going to hell. Since you have a Nismo you will also have the small rectangular piece, up under it are 3 push clips. If they come out you will get this funky noise and vibration.

This is strange, how could this happen? I only daily it to work and back and up the mountains every now and then. Is it an expensive fix? Car is still under warranty.

Jack up "nigmo" and look for something loose, hanging down, baseball card in the spokes kind of things.

Our brand new Murano had a similar issue recently. Several of the plastic push pins came out of the under tray and the rear mud flaps. I secured all of it with slightly larger push pins and it solved the issue.

As Madwi said, check the undercarriage throughly.