[Porchdog]

Just to expand on the Schwaben - The Mini had developed a "service engine" light separate from OBD. I couldn't diagnose it without the specialized scanner.
The Schwaben let me know that it was low manifold pressure. After some research online I was checking wastegate function and found a loose clamp on and intake hose. Problem fixed.
It also lets me check and reset the maintenance records. It can check all systems as near as I can tell - including HVAC, displays/entertainment, safety, etc.

Pretty cool tool at a reasonable price. Plus it works well as an OBD tool - including on a couple Fords that I had trouble scanning with my other tools.