Yea, Proton cars not that bad but the QC suck only. There are alot imperfection Proton cars escaped from their QC. My friend taking the new Saga 1.3 having some roof problem where rain water will leaking into car cabin while my ex colleague's Persona get a defect alternator which his alternator spoilt after just 3 months.
Some who are lucky, they never have any issue with Proton car...
Well, buying Proton car is like a betting, there are high chances you will bought a defect car. Of course SC will replace and fix for you but there is imperfection already.... 

Well, Lamborghini has a bit of a reputation... not that reliable.







Just to show a few.

So are they bad cars?

I'm sure Proton could improve their QC... but that will cost money. Money that people are not willing to pay, cause it's a Proton. It has to be cheap. I remember reactions to the Preve pricing, saying it is too expensive. Seriously?