What is the difference between a TFSI and a TDI engine in an Audi?

I am considering purchasing an Audi, but I'm confused about the different engine options. Can someone explain the difference between a TFSI and a TDI engine in simple terms?

The main difference between a TFSI and TDI engine is the type of fuel they use. TFSI engines utilize gasoline while TDI engines use diesel. This results in different performance and efficiency levels for each engine type.

TFSI engines are typically more responsive and have higher horsepower compared to TDI engines. However, TDI engines have better fuel efficiency and can provide more torque, making them better for long distance driving.

Both TFSI and TDI engines are high-quality and reliable options. The best option for you will depend on your specific driving preferences and needs. It's always recommended to test drive both before making a decision.