While some may be subjective, this is what I have noticed:
- The fans run significantly less even after the ICE has been running. If I drive 30 miles to/from work on battery only, often the fans are not running at all when I get to my destination. When they do run, they switch off much more quickly (30-45 seconds).
- I get the impression that charging takes longer with my Level 1 (110v) charger (may be my imagination)
- The fuel gauge range and 'arc' does not seem to change much anymore
- The "Parking Brake is Applied" message is no longer ALL CAPS

- The music system comes on even before I select "Agree" on the touch panel.
- The chimes for selecting HILL and SPORT are indeed shorter
- I still got a P0A7B error after I drove back from your garage. The car ran on ICE for a while after depleting the battery (no sudden drop in battery range in the last miles that I noticed) and I charged the car overnight. In the morning the CEL was on and my reader showed P0A7B (and P1BDE). I did clear it and it has not come back (though I have not run the ICE again).
Thank you Pat at Pat's Garage in San Francisco - he got my brake squeal and front wheel judder issues fixed along with the 520 update and applied all this to the Fisker warranty. Great!
Simon