How to make flary light reflection

Hi guys. Im trying to make a flary light reflection on a car body but i dont know how to do that.
flary light reflection means to shine a flare on the car body when it reflects sun light like as this photo:

you see…on the right part of the trunk, where it reflects sun light, its flary like as real metals.
i would be so appreciated if you guys help.

First download the Standard Assets image effects and add Bloom to your camera (Assets → Import Package → Effects). Then level up your car material’s smoothness.

For the sun effect you can see on the on top the public stands you can use the SunShafts effect, it’s also in the standard assets.