How does Audi A7 achieve fuel efficiency while maintaining its sporty performance?

I'm considering investing in an Audi A7, but I'm confused about how it manages to offer both high performance and fuel efficiency at the same time. Can someone explain the technology behind this feature?

The Audi A7 is equipped with a turbocharged V6 engine and a mild hybrid system, which helps to reduce fuel consumption while providing impressive power and acceleration. The engine shuts off when the car comes to a stop, reducing wastage of fuel.

The car uses a 48-volt electrical system, which enables it to recover energy while decelerating and store it in a battery for later use. This allows the engine to run at its most efficient level, reducing fuel consumption.

The sleek and aerodynamic design of the Audi A7 also contributes to its fuel efficiency. The car's drag coefficient is as low as 0.27, reducing air resistance and providing better fuel economy.