3.7 sticks out like a sore thumb. 3.7! There's just not enough oil to absorb and redistribute all that heat. This oil capacity is the line item of the design that "gave" when something had to give... I'd bet there were some heated (no pun intended) talks when this was on the drawing board all those years ago.
power requirements
weight (but really WxHxD) requirements
cost requirements
"Now go make this work," and they did. As a premium brand I think this was approved, because owners were going to follow service specs at the dealer service department. They weren't releasing these cars to the Great Unwashed masses to DIY oil changes and forgotten/skipped service intervals. (But reality hit the second owners who had budgets, had no 2nd car or loaner, etc.)
