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 |
|---|---|---|---|
| Quick Specs | |||
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The 2017 Audi S8 is the super sedan by which others are measured. |
Don’t let the conservative wrapper fool you, the 2016 BMW 7-Series charges boldly into a new generation as a sporty big sedan, with new ride-and-handling tech, space-age construction, and a plug-in hybrid version. |
The 2016 Jaguar XJ balances extravagant looks with dazzling big-car performance. |
Coupe, Cabriolet, and Maybach versions—and even a Plug-In Hybrid—make the 2016 Mercedes-Benz S-Class far more diverse and adventurous than it used to be; it's now not just a flagship sedan, but a family of flagships. |
| MSRP From | |||
| $82,500 | $81,300 | $74,400 | $95,650 |
| Gas Mileage | |||
| 15 MPG City / 29 MPG Hwy | 16 MPG City / 29 MPG Hwy | 15 MPG City / 27 MPG Hwy | 13 MPG City / 26 MPG Hwy |
| Engine | |||
| Intercooled Supercharger Premium Unleaded V-6 | Intercooled Turbo Premium Unleaded I-6 | Intercooled Supercharger Premium Unleaded V-6 | Twin Turbo Premium Unleaded V-8 |
| EPA Class | |||
| Large Cars | Large Cars | Large Cars | Large Cars |
| Style Name | |||
| 3.0 TFSI | 4-Door Sedan 740i RWD | 4-Door Sedan R-Sport RWD | 4-Door Sedan S 550 RWD |
| Drivetrain | |||
| All Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive |
| Passenger Capacity | |||
| 5 | 5 | 5 | 5 |
| Passenger Doors | |||
| N/A | N/A | N/A | N/A |
| Body Style | |||
| quattro LWB Sedan | Sedan | Sedan | Sedan |
| Transmission | |||
| 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 | |
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