Okay, I need some Murkin aficionado to ‘splain this one to me. It’s a 1963 Plymouth Sport Fury:

The engine is 512 c.i., and creates 656 hp with 662 ft-lbs of torque, while the rev counter goes up to 9,500rpm, all of which seems stratospheric for a car of this vintage.
The questions flow thick and fast, e.g. why did this beast not take over the world, did it ever race and win everything it raced in, etc.
All educated comments welcome.