* Popularity of the Automatic: Automatic transmissions were overwhelmingly preferred in the late 1960s, making manual transmissions, particularly in larger cars like the Polara, less common.
* 440 Engine Optioning: While the 440 was a powerful and desirable engine, it was likely more often paired with an automatic transmission, especially considering the Polara's size and intended use.
* Production Numbers: Exact production figures for specific Polara 500 combinations are hard to come by, but given the factors above, the number of units produced with this specific combination was undoubtedly low.
* Survival Rate: Many cars from this era have been lost to time, accidents, or scrapping. The survival rate of a car with these desirable (but less common) options is even lower.
In short, finding a 1968 Dodge Polara 500 with a 440 and a 4-speed would be a significant find for any Mopar enthusiast. It would likely be considered a highly collectible and valuable vehicle.