What are the most common engine types in the Audi A4?

I'm researching the Audi A4 and was wondering about the engine options available. What are the most common types and what distinguishes them from one another?

The most common engine types in the Audi A4 include the 2.0L TFSI and the 3.0L TFSI. The 2.0L TFSI offers a balance of power and efficiency, while the 3.0L TFSI provides a higher level of performance.

In addition to the 2.0L and 3.0L TFSI engines, the Audi A4 also offers a 2.0L TDI diesel engine. This option provides great fuel economy and torque for a smooth driving experience.