Why is the Audi A5 Turbocharged Engine So Efficient?

I have been looking at the Audi A5 and I notice that it has a turbocharged engine. How does this technology work and why is it so efficient?

The use of a turbocharged engine in the Audi A5 helps to reduce engine weight and size, resulting in improved performance and handling. Additionally, the turbocharger helps to reduce emissions by optimizing the fuel-to-air ratio.

The turbocharged engine in the Audi A5 utilizes exhaust gases to spin a turbine, which then compresses the air entering the engine. This compressed air allows for a greater amount of fuel to be burned, resulting in higher power output and better fuel efficiency.