What are the key features of the Audi A4 engine?

I am looking into buying an Audi A4 and I want to know more about its engine. What are the standout features of this car's engine and how does it compare to other models?

The Audi A4 has a turbocharged four-cylinder engine, offering both power and efficiency in one package. It also has a low emissions rating, making it more environmentally friendly than some other models.

One standout feature of the Audi A4's engine is the new cylinder-on-demand technology, which deactivates cylinders when they are not needed. This helps improve fuel efficiency without sacrificing performance.

Compared to other models, the Audi A4's engine delivers smooth and responsive power, making it a joy to drive. It also offers great torque for quick acceleration and can reach higher speeds effortlessly.