It would be great if we can compound a list of issues with the X6 that is covered under warranty.

This would be of interest to anny potential customers, but not least to those in Europe looking into buying a X6 in the US. A US model would not be covered under warranty in Europe, but as we might save as much as $45000 on a single car, taking that chanse, and then paying for the repairs out of ones own pocket might be a very sound choice.