if its something major like the shell (a pillar is part of shell) it cannot be put right, it can only be fettled to make as good as, which when you are buying a new car is a load of cok, you should get a 'new' car. which should havepassed its quality control.
Our dispute was with audi, we bought a brand new 2001 (well back in 2001 obviously) 3.0 a6 avant quattro, cost quite a bit over £30k, it was two weeks late when we picked it up, we had a quick look over the car and said yes its fine, as we thought there isn't going to be anything wrong with it, why are we looking at this car why can't we take it now. So we signed and we took it. Got it home and as we walked back down the road to th front door, looked back and noticed that there was a load of paint missing from the front bumper
Hadn't been anywhere but the dealership for a long drive (its 30miles as it is, but we took it for about 2.5hours!) and home no chance for any parking mishaps.
Basically when they had been moving cars around the dealership car park someprick had driven into our brand new car (a customer later caught on cctv) and driven off. This was before we signed the form. however if it had been the dealers fault we would have had to take them to court as technically we had accepted the car in its condition. But as it was caused by a customer the dealerships insurance interviened technically before that point in time (maybe an hour or so in it!) so their forecourt insurance covered it. They came and picked the car up and gave us a poxy A2 as a courtesy car for three weeks!! Car came back and they said they had put a new bumper on it and sprayed it! Not likely it had been touched up in a colour that wasn't even metallic (its met graphite) looked terrible. So we rejected that, where upon they resprayed that bumper to a perfect match (perfect match) however they obviously had used same bumper as it showed thru (the grated plastic). So we rejected it again, where upon they sent it back again with a new bumper also sprayed (from box fresh) but it didn't match, it was about the same difference as my amatuer sprayed punto bumpers!!!!
Eventually they sucombed and despatched us a new car from factory to same spec that had all been sprayed in factory to the correct colour! And I believe they had to crush the first one
as it had not really been registered or it was faulty goods etc. Anyway whole process took over 3months, and when the new one came there was a scratch on the inside alu trim panel (a £450 option over platic or fake wood) on above inside drivers door handle, We got that £450 back but never repaired it.
Basically we went thru hell and back and the audi dealership almost the whole time were like, "well its near enough, its not like anyone can tell", when you have just spent £33,000 on a new funking car!!!!!!