Why is my fuel economy worse in the city compared to the highway in my Audi A6?

I've noticed that I get better gas mileage when driving on the highway, but my fuel economy seems to suffer when driving in the city. Is this normal for an Audi A6?

You're not alone, Adam. City driving typically involves more stop-and-go traffic, idling, and acceleration and deceleration, all of which can greatly impact fuel economy. On the other hand, highway driving allows for smoother, consistent speeds, resulting in better gas mileage. It's just the nature of city driving.