The Audi S8 competes against the best versions of full-size sedans.
The high-powered Mercedes-Benz S63 AMG is flashier and newer, but also prodigiously more expensive.
We like the BMW 7-Series, but haven't yet driven the apples-to-apples competitor, which is the Alpina B7.
We'll update this story when we do.
The Jaguar XJR is loud, shouting, and a lot of fun, but is rear-drive only and struggles to put its power down.
The Lexus LS 460 is the outlier here, and competes with the S8 in terms of comfort—but not much else.
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|2017 Audi A8Browse Used Listings||2016 BMW 7-SeriesBrowse Used Listings||2016 Jaguar XJBrowse Used Listings||2016 Mercedes-Benz S ClassBrowse Used Listings|
|15 MPG City / 29 MPG Hwy||16 MPG City / 29 MPG Hwy||15 MPG City / 27 MPG Hwy||13 MPG City / 26 MPG Hwy|
|Intercooled Supercharger Premium Unleaded V-6||Intercooled Turbo Premium Unleaded I-6||Intercooled Supercharger Premium Unleaded V-6||Twin Turbo Premium Unleaded V-8|
|Large Cars||Large Cars||Large Cars||Large Cars|
|3.0 TFSI||4-Door Sedan 740i RWD||4-Door Sedan R-Sport RWD||4-Door Sedan S 550 RWD|
|All Wheel Drive||Rear Wheel Drive||Rear Wheel Drive||Rear Wheel Drive|
|quattro LWB Sedan||Sedan||Sedan||Sedan|
|Automatic w/OD||Automatic w/OD||Automatic w/OD||Automatic w/OD|
|Detailed Spec Comparison|
|2017 Audi A8 vs. 2016 BMW 7-Series||2017 Audi A8 vs. 2016 Jaguar XJ||2017 Audi A8 vs. 2016 Mercedes-Benz S Class|