What are the main differences between the 2021 Audi A4 and the 2020 Audi A4?

I am debating between the 2021 and 2020 Audi A4 models and cannot decide which one to go for. Can someone help me understand the key distinctions between these two models?

The biggest difference between the 2021 and 2020 Audi A4 lies in their respective engines. The 2021 model comes with a standard 2.0-liter four-cylinder engine, while the 2020 model has a slightly smaller 1.4-liter engine. Therefore, the 2021 model boasts more power and torque.

One significant change in the 2021 Audi A4 is the inclusion of a new touchscreen infotainment system. This allows for better and easier access to features such as navigation and smartphone integration. The 2020 model, on the other hand, has a smaller, less user-friendly screen.