Did you know that Douglas intended to make a civilian passenger model of this beast? They were going to call it the DC-8, not to be confused with the real jet powered DC-8 with which it had zero commonality.
One of my most favorite experimental bombers of WW2. Too bad it came along too late as its performance put all other medium bombers to shame. I've always wondered if, like a lot of pushers and planes with twin-engines driving a single set of props, it would have suffered overheating problems.