Like Concorde, only smaller and crappier.
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Something is off. Similar fuel consumption per floor area as a subsonic plane? Hard to believe. (And would imply that almost every size group would get supersonics.) If more expensive, then business case is less time door-to-door, mostly implying that it isn't a liner.
Not per floor area, per passenger. Flight times are so much shorter that you don't need lie-flat seats in business class.
