Reliability on X3- below than average. Mercedes Benz- dead last . Audis are now labled as reliable.( A6 & the A/S4 models) It this maybe because of too much electrical gadgetry that has caused the decline in it is ability to be annoying free cars?
Japanese makes (once again) are on the top of the list as most reliable.

I assume thats why BMW offers free maintenance service for 4 years to entice people to continue to buy their vehicles to offset any reliabilty issues one may encounter.
Marketing!...Its all about marketing isnt it?