2026 Audi S3
The EPA rates the 2026 Audi S3 at 26 MPG combined (23 city / 31 highway).
At a glance
- Fuel economy
- 26 MPG combined
Sources: NHTSA complaints, recalls and 5-Star ratings; U.S. EPA
Fuel economy
The EPA rates the 2026 Audi S3 at 26 MPG combined (23 city / 31 highway).