Reality Check: Modern BMW's are good to about 60-80K, then they should be recycled. They're simply not economical beyond that point for the average car owner. They were intentionally designed that way to maximize profit since this keeps material costs low, while pushing them beyond new car, 8/80 Fed warranties, and most lease periods, which is how most new BMW's are financed. You are working against the laws of physics to keep one on the road much past 100K because the materials and engineering are not designed to be in service for that amount of use.