How important is the engine displacement in the BMW M9?

I'm considering buying a BMW M9 and I've noticed that the engine displacement varies quite a bit among different models. How crucial is this factor in terms of performance and overall driving experience?

In my experience, the engine displacement can greatly impact the power and acceleration of a vehicle. It's important to consider your driving preferences and needs before making a decision.

The engine displacement is definitely a factor to consider, but it's not the only one. Other factors like horsepower, torque, and weight of the car also play a role in performance.