Your thinking is exactly like mine... basically lots of questions and I honestly don't have the answer. I'll get a new box back, I'll put it in and see if there is a difference. I had the box since July and it never really felt like it worked properly, so I'm leaning towards fault in the box / map. But yea; I'll know more when I get another one, and a higher model that allows remote map updates etc. I can't complain about the service from TDI and they're adamant it should perform better.
I was surprised about the stock power readings at the wheels. But having had similar cars (2L turbo etc) it feels (butt dyno) like the readings are about right to be honest... and BMW have under rated the power. It's worth noting that I have the launch edition with a build date of 11/2018 - seems like the earlier models might have been a bit different.
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