How can I achieve the best fuel efficiency in my BMW M9?

I recently purchased a BMW M9 and I am curious about the best practices for maximizing fuel efficiency. Can someone provide some insight or tips on how to achieve the best fuel efficiency in my car?

Using the Eco Pro mode can help improve fuel efficiency by adjusting the car's systems to prioritize efficiency rather than performance. You can also try to drive at a consistent speed and avoid aggressive acceleration and braking.

Regular maintenance such as changing the air filter and getting the tires properly inflated can also improve fuel efficiency. Additionally, try to avoid carrying unnecessary weight in the car.

Driving at lower speeds on the highway can also help improve fuel efficiency. If possible, try to cruise at a constant speed rather than constantly accelerating and decelerating.