Unfourtunetly i dont think you have any comeback!
I bought a 00 car 2 years ago. I was given a 3 month warenty with the car!!
During this 3 months i returned the car on many a occasion....
Drivers seat collapsed
Brake dics were going
Clutch needed to be replaced.
I would asked to leave my car down 3 or 4 times each time after being told sorry didnt get around to it bring it back next week!
Unfourtuetly this went on until the warrenty was up.
And i found that proper repairs were never carried out on the car but patch up jobs! So after the 3 months i was left replcing the clutch, replacing the brakes and i drive around with a drivers chair which is collapsed on the right side as one day whilst sitting in my car and heard a bang with that a found a large metal plate had falled off the frame of the chair due to rust!! Rust on a 00 car chair!!
So in the 2 years that i ahve had the car a
Clutch, Gear Box, Brakes have been replced plus it will cost my €2456.00 to replcew the chair as it is un fixable. I threatened legaly action but i was sneered at!
my advice would be, next time ur buying a car bring a mechanic with you and check every inch and if while still under warrenty a part need to be fixed get in writhing that if that part fails again within 6 months of being fixed they will take resposability and fix it.
PS. Never dream of buying a car from Carroll & Roche in Newlands Cross Clondalkin........