A modified version of the Audi RS6 C8 by Iamthelaw105 and Zuweisung with a reworked interior and extra tuning options.

Configs

• RS6 Avant HP, ABT HP, Mansory HP, GT
• RS6 Avant Performance 
• RS6 Avant APR

Features

• Audi Advanced Key: lock and unlock with mirrored hazard-light flashes and welcome and goodbye light animation. It works with keybinds, even outside the car, and with a trigger on the driver door.
• Coming Home and Leaving Home lights, adjustable in the MMI (Lights → Exterior lights → Entry/Exit): switch each one on or off and set the duration (15 / 30 / 60 s)
• Virtual cockpit with RS Sport, RS Performance and RS Runway layouts, including boost and oil bars
• Dark and white Performance dial design, switchable in the MMI and saved per config
• MMI display and brightness page for choosing the cockpit layout
• ECU stages: Series, RS6 Performance, APR Stage 2, ABT Stage 1, Track
• Reworked gearbox behavior, sailing, dynamic idle, standhold and camera tweaks

Installation note
Spawn the car fresh after installing. Don't just reset it.

Feedback and bug reports are welcome.

Credits
Original mod and models: Iamthelaw105 and Zuweisung. All rights to the original content remain with the original author.