Why is the engine of the Audi A4 more powerful than other cars in its class?

I've been looking to buy a new car and I noticed that the Audi A4 has a significantly higher horsepower and torque compared to other vehicles in its class. Can anyone explain why this is? Does it have to do with the engine size or is there something else at play?

The Audi A4 is equipped with a 2.0-liter turbocharged engine which provides a powerful and efficient driving experience. This allows for more power to be generated from a smaller engine size.

In addition to its turbocharged engine, the Audi A4 also has advanced fuel injection technology and a lighter body weight, further contributing to its impressive power output.