What are the main differences between the Audi A2 TDI and FSI engines?

I am considering buying a used Audi A2 and trying to understand the differences between the TDI and FSI engines. Which one is more reliable and fuel efficient? Are there any major performance variations?

The TDI engine is a diesel engine, while the FSI is a petrol engine. The TDI engine is more fuel efficient and has a longer lifespan, but the FSI engine has better overall performance and acceleration. If you value efficiency and longevity, go for the TDI. If you prioritize performance, choose the FSI.

TDI stands for Turbocharged Direct Injection, while FSI stands for Fuel Stratified Injection. Both engines offer great fuel efficiency and performance, but the TDI has higher torque and better fuel consumption. If you prioritize driving experience, go for the FSI. If you want better mileage, choose the TDI.