Uncovering a prior BMW coverup and discovering the "Vanos problem"

Given the BMW factory reps' hostility, mean spirit and ambiguous promises to honor the warranty, and a comment form a BMW tech that "vanos failures on this car are pretty common", I decided I would do some research on "vanos" systems.  I quickly found numerous forum posts from BMW customers with E46 M3s who had "vanos" failures.  Indeed, I actually found two companies who had been created just to sell parts to repair BMW vanos systems.  I owned one a 2003 E46 M3 and received a letter from BMW of North America telling me to take the car to Reeve's BMW in Tampa to have the motor rebuilt and that caused me to sell the car soonest.  So, I was not surprised in my research on vanos failures when I came upon a plethora of raging BMW owner complaints about the early E46 M3s which had catastrophically failing motors.  Apparently BMW initially placed blame on customers "over-revving" their motors, and only after what appears to be a massive internet campaign to expose their scheme to defraud BMW customers did BMWNA reverse their position and repair owner's vehicles.   BMWNA later conducted a massive voluntary recall program to disassemble and repair all motors constructed from 2000-2003, apparently they were replacing connecting rod bearings (due to defective parts and/or poor engineering).  

So I learned that there seemed to be many more people out there with failed E46 M3 "vanos" systems and that when BMW had catastrophically failing motors on early E46 M3s they initially tried to void customer warranties, just like they tried to do to me. I was getting wise to their business practices.