I guess I should've qualified my comment with a note about those vehicles being American-made V8s. Diesel engines tend to have higher lubrication requirements thus they have larger oil pans. I see that those BMW engines you listed are gassers so I took a look at their specs to see why they would need such large oil reservoirs.
Twin turbos. Mounted in the engine valley. High heat in that configuration and high oil consumption as a result - up to 1 qt/1000 miles. [0]
That's crazy. I can drive my V8 powered, non-turbo engine Bronco 10000 miles between oil changes using full synthetic oil without needing to add a full quart of oil and it has more than 330k miles on the odometer.
I see now why those BMWs may need a huge oil pan. It is an attempt to compensate for the consequences of design decisions that they knew would create problems. Those engines only need a 10 qt reservoir because they would burn through a smaller volume so fast that no one would buy the vehicle because it required them to check the oil every day and to carry oil so that there was less chance of destroying the engine due to running it low.
I was not aware of BMW engines having such huge reservoirs and now that I am I can be glad that I have never considered owing one.
I didn't look at Toyota or other foreign manufacturers who also built V8 engines. Maybe I should educate myself.