Audi S8 vs Audi A8 Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2025 Audi S8 4.0 TFSI Black Edition

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2025 Audi A8 3.0 50 TDI Black Edition
Photo of 2018 model year shown

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Specs

2025 Audi S8
4.0 TFSI Black Edition
2025 Audi A8
3.0 50 TDI Black Edition
Powertrain 8-speed Automatic 8-speed Automatic
Drivetrain
4X4
4X4
Fuel economy, city -- --
Fuel economy, motorway -- --
Fuel tank volume 310 L 310 L
Engine
Fuel type
Petrol
Diesel
Power
420 kW
210 kW
Torque
--
813 N-m @ 3,250 RPM
Cylinders
8 cylinders
6 cylinders
Engine size
3,996 cc
2,967 cc
Exterior
Length 131.83 m 131.83 m
Width 54.1 m 54.1 m
Height 37.47 m 37.41 m
Wheelbase 76.15 m 76.15 m

Available Options

2025 Audi S8
4.0 TFSI Black Edition
2025 Audi A8
3.0 50 TDI Black Edition

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