The Audi RS6 Avant Performance (2024-2025) is a mid-cycle retune of the RS6 Avant's twin-turbocharged 4.0-liter V8, introduced for the 2024 model year as the sole RS6 Avant trim sold in the US from that point on. The chassis, transmission, and running gear carry over unchanged from the base RS6 Avant; the update is a power and torque increase from Audi Sport's engine calibration, plus larger front brake calipers.

It's also the base for the limited-run RS6 Avant GT, which uses the exact same engine tune wrapped in a dedicated chassis package.