I laughed my butt off reading this thread... worst car ever built!!! obviously, the OP has been spared from encountering the cars that are really BAD built... say, the ones that hit a curb at 20 MPH (about 30 km/h) and you have 3 fatalities!!! there are cars built by Chinese that are knock-offs of the brand name cars (either GM or Ford was able to stop Chery from building a clone to its car but BMW has a cloned X5 on Chinese streets)...
Inability of car mechanics to remove a car component in order to replace it sounds really strange - the tools should go progressevely heavy duty as the lighter tools fail to yield...
and for God's sake, inability to find some metric tools only referes to RedNeck Central (I live in RedNeck country, and still able to find metric tools - granted, sometimes i go cheap and instead of buying chinese crap at a local store, i buy the chinese crap on-line).
As far as built quality - i can only attribute the quality problems to early units produced at Spartanburg facility, as the facility was brand new at the time of the initial roll out of the E53, and the staff and the tools were "cutting" their teeth... granted, at the expense of the proud owneres of the first E53s rolled off the assembly lines in the first couple of years - while all of the cars are prone to failures, the early units were especially vulnerable...
but hey, if you really want to drive a WORST CAR EVER BUILT, go try a Chery Amulet...