Why is the BMW M3's engine so powerful?

I'm looking into buying a BMW M3 and I've heard a lot about its powerful engine. Can you explain what makes it so impressive?

The BMW M3's engine is a masterpiece of engineering. The car's 3.0-liter BMW M TwinPower Turbo inline 6-cylinder engine delivers an astonishing 425 horsepower and 406 lb-ft of torque. This is achieved thanks to advanced technologies such as high-precision direct injection and Valvetronic valve control.

I own a BMW M3 and let me tell you, the engine is a true work of art. It's not just about raw power, but also the way it delivers that power. The BMW M3's engine is incredibly responsive, with an immediate and smooth throttle response. This is thanks to the M TwinPower Turbo technology and the Variable Sport Steering system.

As someone who has worked on BMW engines for years, I can assure you that the M3's engine is a true engineering marvel. The engine block is made of lightweight aluminum and features performance-boosting TwinPower technology. And let's not forget about the M3's iconic exhaust note, which is achieved by a tuned exhaust system.