What is the difference between the Audi A4 45 TFSI and 40 TFSI engines?

I am considering purchasing an Audi A4 and notice that there are two engine options - the 45 TFSI and the 40 TFSI. What is the difference between these two options and which one would be better for my needs?

The main difference between the 45 TFSI and 40 TFSI engines is the power output. The 45 TFSI has a 2.0-liter turbocharged inline-four engine, producing 245 horsepower, whereas the 40 TFSI has a 1.4-liter turbocharged inline-four engine, producing 150 horsepower.

If you are looking for a more powerful and dynamic driving experience, the 45 TFSI would be the better option for you. However, if you prioritize fuel efficiency and emission levels, the 40 TFSI would be a more suitable choice.

Another important factor to consider is the price difference between the two engines. The 45 TFSI is typically more expensive than the 40 TFSI, so you'll need to weigh the cost against the performance and functionality benefits.