There are two ways to make a background transparent in Photoshop: using the "Remove Background" quick action or manually by using selection tools.
It only takes a few steps to change your image's background color in Photoshop. You'll just need to use the Quick Selection Tool and Quick Mask mode.
To make a scene feel complete and styled, change the colors of background components or the car to make it all come together. This is easily done in Photoshop after making your edits in Lightroom CC.