The Audi RS 6 Avant Performance and RS 7 Sportback Performance have the most powerful internal-combustion engine the marque has given a road car.
Audi Sport Models
Audi adds more powerful versions of its RS 6 and RS 7
2023 Audi RS6 and RS7 Performance Get 621 HP, New Differential
2024 Audi RS 6 Prices, Reviews, and Pictures
AWE Exhaust Suite for the Audi C8 RS 6 - AWE
Audi RS 6 Avant Performance and RS 7 Sportback Performance models revealed - Autoblog
RS6 & RS7 Performance - Finally Here : r/Audi
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Audi Announces U.S. Pricing for 2024 RS 6 Avant and RS 7 Performance Models - autoevolution
Audi's New RS 6 and RS 7 Are More Powerful and Precise Than Ever – Robb Report
2024 Audi RS 7 Prices, Reviews, and Pictures
More Power for Audi RS 6 Avant Performance, RS 7 Sportback
2024 Audi RS6 Avant / RS7 Performance: More of Everything - The Car Guide
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2023 Audi RS6 and RS7 Performance Get 621 HP, New Differential