RE: More Production Rumors
Back in the 1970s, a lot of cars HAD to be equipped with automatic transmissions to cut the pollution output. I don't know if that's still the case (although I suspect it is), but if so, I wouldn't be surprised that an automatic would be required for the Hemi engine. What killed the original Hemis -- even more than the gas crisis of 1973 -- was that they were an incredibly dirty engine, pollution-wise.
The pollution problem also killed the 1970s versions of Mazda's rotary engine (then known as the Wankle) -- which obviously didn't use as much fuel as a 426.