Sadly, as has been mentioned manufacturers will always deny serious faults one way or the other, even though, quietly they will actually be helping with rectifications.
I remember a Caterham I owned back in 1997 had a DeDion tube on which the bottom shock absorber brackets had peeled away due to inadequate strengthening, a bit like the chassis problem, and Caterham flatley denied there was a problem, and accused me of hitting kerbs with it, which I hadn't. They grudgingly sold me a new tube for a small discount, 10% or 15% I think, even then, I had to fit it myself.
Anyway, after a thread was started on the Club forum, Blatchat, it turned out there were dozens of other tubes which had suffered the same fate, all denied by Caterham. Some of these failures had caused pretty serious accidents, one at least, in which the driver had been prosecuted for dangerous driving.
