I hope this is in a reasonably appropriate place on here. If not, please move it.

So I ran my Carfax on a car that I bought as a Certified Pre Owned vehicle from a licensed dealership in VA just over 6 years ago. To my surprise, my car had been in an accident that I was not made aware of. The car came with a Carfax report when I bought it, and it was clean at the time (Carfax didn't get reports from this particular place until after I bought the car)

The issue that I'm having is that the car was repaired AT THE DEALERSHIP that I bought it from.

So, what would you do? My car is worth about 25% less than what it would be worth otherwise... and had I known this information beforehand, I would've NEVER bought the car... I mean, I bought CPO for a reason.

What would you guys do? I'm tempted to hire a lawyer, but don't want to be unreasonable.

I appreciate any and all suggestions/opinions.