Shared An Idea With Company Was Rejected - 15 Years Later They Have Developed My Idea

I took an idea to an automobile company in 2005. They liked the idea as it was inavative at the time and the company went as far as involving attorneys and filed for patent pending, listing me as inventor 1 of 6. After about 18mths of research and exploring the idea they went to corporate meeting where it was not selected as one of the new ideas they would go with.

Fast forward 15 years later, I found where they have put the idea into one of their luxury vehicles.

Should I even bother with hiring an attorney to see if I have any ground to profit for the original idea?