Why does the BMW M5 have a V8 engine instead of a V6?

I've noticed that most luxury sedans have V6 engines, but the BMW M5 has a V8. Why did BMW make this choice and how does it affect the performance of the car?

The decision to use a V8 engine in the BMW M5 was to enhance the performance and power of the car. With a V8, the M5 has a higher horsepower and torque compared to V6 engines found in other luxury sedans. This makes for a more exhilarating driving experience.

In addition to performance, the V8 engine also adds a unique sound to the BMW M5. The rumble of a V8 is unmistakable and adds to the overall character of the car. It's a sound that every car enthusiast can appreciate.