Why does the Audi A1 have a reduced fuel efficiency?

Despite its small size, some owners have reported lower than expected fuel efficiency in the Audi A1. Can anyone explain why this might be happening? Is it a common issue or something specific to certain models?

The reduced fuel efficiency in the Audi A1 could be due to the car's weight and power output. The A1 is a small car with a powerful engine, which can use more fuel. One way to improve efficiency is by using fuel with a higher octane rating.

Another factor that could affect fuel efficiency in the Audi A1 is the way it is driven. Aggressive acceleration and braking can use up more fuel, so it's important to drive smoothly and avoid unnecessary acceleration.