Linking main image to post

I was wondering if there is an automated way of getting an image to link to the main post? For example, if I have a post about a car its not really obvious that you can click the title to get to the post… most people would click on the image of the car to read the post if they dont click “Click here to read more…” Typically now I just manually link the image but I was wondering if there is a more automated way of doing this?

Thanks