What is the most efficient way to keep track of fuel consumption in an Audi A1?

I recently purchased an Audi A1 and I'm curious if there are any tools or methods to accurately track my fuel consumption. I want to be able to monitor how much fuel I am using and if there are any patterns or changes in consumption based on my driving habits.

The best way to track your fuel consumption in an Audi A1 is by using the onboard computer. It provides real-time data on your average fuel consumption and can also be reset to track a specific trip.

Another option is to manually calculate your fuel consumption by keeping track of the mileage and the amount of fuel you fill up with. This may be more accurate but can be time-consuming.