So I was driving on the ramp from i88 onto i294 this afternoon when a blue Prius that was in the lane next to me decided to slam on the brakes and swerve into my lane causing me to slam into the back of his car. I ended up on the shoulder next to the fast lane and he pulled over on the shoulder next to the slow lane, across traffic. I got out to look at my car and he took off. Couldn't get after him fast enough and I lost him. Luckily I wasn't in my mustang and it's only my civic. Below is the pic of the color of this late model Prius. I'm not sure of the year but it will look similar to this picture. It will have heavy damage to his rear bumper towards the drivers side. Any help will be greatly appreciated because it will be an out of pocket expense to me.
My car
My car