There's really only two things you can tell when you see a disguised test car out on a street: A. It comes from a company that makes or plans to make cars and B. It's a design that's disguised because we're not supposed to know about it yet. This disguised Fisker Karma breaks both of those rules.
Fisker is effectively shut down at the moment, and the chances of it recovering look pretty dim right now. And, even if Fisker was still a viable car-developing entity, the Karma's been out for years. Everyone knows what the thing looks like. Hell, what it looks like is the only reason we even care about it. So why is this Fisker in dazzle-paint?