agree with Alex on this one...

There is a huge market on the secondary industrial machinery - there are even catalogues, auctions etc... as the original factories retool their lathes, cranes, robots for new models of "things (cars, door handles, etc...), they sell old equipment and buy new one... sometime original equipment is leased, and once the lease is over, it goes back to the original owner who just sells it... The buyers are usually from China, Bangladesh, Indonesia, and other places where the labor is relatively cheap... Sometimes entire factories change hands and locations... Now, a factory that used to make those door carriers as OE for the brand is located who knows where and continues to manufacture the same door carriers... The problem, however, the materials that are used are no longer of the same quality, the workforce is no longer trained to the same standards, and the equipment is NOT maintained to the same strict standards of the OE manufacturer, resulting in 0.0001 mm deviation form the original spec (I am being nice here, sometimes it is 0.1, or even 5mm), which compromises the fitment and quality of the final product... This is how we see Chinese made X5, Chevy Silverados, Ford 150, Opels, etc. that use those inferior product as their OE parts... they do not perform even at the half of the level of the Real McCoy but cost a lot less, which has its own appeal - I've seen some folks in Brooklyn that have nothing to their name wearing $20 Rolexes and be as proud as they were real...

check the crush videos of Chery Amulet, that is a knock off of another car - the original was doing OK on the tests... see for yourself, how the replica did...