-Driving through Sweden from the Svinesund border crossing to the Øresund bridge last year, we definitely had DAB coverage for parts of the trip, but not all - definitely around Gothenburg and Malmö, I believe reception lasted quite a way out into the suburbs along the E6 highway.
no. you tune it to your regular fm band on your radio. if you have a digital receiver, which is almost any car in the last decade+, it'll do digital. you won't even know it.
in fact, most of these people here defending analog have been using digital for years. this conversation however is not about fm. the switch to digital there was a long time ago. it's about am, whose ship is sailing now.