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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2026 Audi S8 4.0 TFSI Black Edition

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2026 Audi A8 3.0 50 TDI Black Edition
Photo of 2018 model year shown

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Specs

2026 Audi S8
4.0 TFSI Black Edition
2026 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
Cylinders
8 cylinders
6 cylinders
Engine size
3,996 cc
2,967 cc
Interior
Maximum seating 5 seats 5 seats
Front legroom -- --
Rear legroom -- --
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

2026 Audi S8
4.0 TFSI Black Edition
2026 Audi A8
3.0 50 TDI Black Edition

Related Comparisons

2026 Audi S8
4.0 TFSI Black Edition
2026 Audi A8
3.0 50 TDI Black Edition