"This dealer is the worst."

"This dealer is the worst."
Purchased a vehicle at this location 4 months ago. Vehicle was supposed to be taken back to dealer to have some minor body work done as well as have the sunroof fixed since it would not close completely. I was told, after picking up the vehicle, that roof could not be fixed at the time due to needing some parts.
It has now been 4 months and 6 trips and roof is still not fixed. They will not provide you with loaner, rental or reimbursement.
They purchase vehicles from auction and go straight to their lots without any work done to them
"Do not purchase from this dealer"