The intend of this thread was not to discuss the subtleties regarding ADB vs. LSD and which is better, but simply to clarify some common misconceptions.
To summarize:
- The 135i and other recent BMWs have an electronically assisted open differential that is significantly better than an open differential.
- Modern BMWs put power down to both wheels in most situation.
- No power is cut as a result of ADB.
- The electronic differential system works well for the vast majority of BMW owners and in most scenarios.
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