What are the main differences between a traditional engine and an electric engine in an Audi car?

I am considering purchasing an Audi car and I am curious about the differences between a traditional gasoline engine and an electric engine in terms of performance, maintenance, and sustainability. Can someone please provide insight on this?

Compared to a traditional gasoline engine, an electric engine in an Audi car provides smoother acceleration and quieter driving experience.

When it comes to maintenance, an electric engine in an Audi car requires less regular maintenance as it has fewer moving parts and does not require oil changes.