What are the differences between the Audi A4 40 TFSI and the 45 TFSI?

I am considering purchasing an Audi A4, but I am unsure of which model to choose. How do the 40 TFSI and 45 TFSI versions differ and which one would be better suited for my needs?

The main difference between the Audi A4 40 TFSI and 45 TFSI is the engine size and power. The 40 TFSI has a 2.0L engine with 186 horsepower, while the 45 TFSI has a 2.0L engine with 248 horsepower. If you are looking for a bit more power and acceleration, the 45 TFSI would be the better choice.

Another difference is in the fuel efficiency. The 40 TFSI has a slightly better fuel economy, with an estimated 27 mpg in the city and 34 mpg on the highway, compared to the 45 TFSI's estimated 24 mpg in the city and 32 mpg on the highway.