I do not have a complete list. But I know for a fact that Toyota and Lexus do not allow new destinations to be set while in motion. BMW and Audi generally allow it (80% sure on this.) The last Mercedes I drove, a 2008 model, allowed POI names and cities to be input while moving, but not full street addresses.
If I find more definitive info, I'll post a link here.
This state of affairs is annoying to me. Nav systems cost a ton, and just when you need them most, you can't use them. I almost always use Nav when I'm on long trips and have someone sitting on the passenger seat. There is a passenger airbag detection system connected to the airbags; why not use that signal to allow the nav systems to be fully operational when a front passenger is present??
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