The Audi S8 competes in rarefied air with the BMW Alpina 7 and Mercedes-AMG S63.
Both are newer cars with updated tech, but all three are relatively on par when it comes to performance.
None of the three are particularly flashy, but the S8 is even more subdued—almost to a fault.
The Jaguar XJR and Lexus LS F-Sport may not turn the same lap times, but they can turn heads.
There’s not a bad pick among them, but the Lexus is quickly approaching a newer version.
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 2018 Audi A8Browse Used Listings |  2018 BMW 7-SeriesBrowse Used Listings |  2018 Jaguar XJBrowse Used Listings |  2018 Lexus LSBrowse Used Listings |  2018 Mercedes-Benz S ClassBrowse Used Listings |
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| Quick Specs | ||||
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The 2018 Audi S8 is a speed machine that's the ultimate sleeper. Spot one and stare—it'll likely be gone just as quickly. |
The 2018 BMW 7-Series is a plush ride with plenty of powertrain options and customizable features that places it among the full-size greats. |
The 2018 Jaguar XJ swaddles its occupants in leather, delivers them in style, and offers sporty road manners for a large car due to its lightweight construction. |
The 2018 Lexus LS 500 sedans don’t reach for the same performance limits as the LC coupes, but there’s ambition in every line. |
The 2018 Mercedes-Benz continues to push the envelope for comfort. safety, and autonomous driving aids, while improving upon its effortless power and dignified road manners. |
| MSRP From | ||||
| $82,500 | $83,100 | $75,400 | $75,000 | $89,900 |
| Gas Mileage | ||||
| 14 MPG City / 29 MPG Hwy | 13 MPG City / 29 MPG Hwy | 15 MPG City / 27 MPG Hwy | 18 MPG City / 33 MPG Hwy | 13 MPG City / 28 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-6 | Twin Turbo Premium Unleaded V-6 |
| EPA Class | ||||
| Large Cars | Large Cars | Large Cars | Midsize Cars | Large Cars |
| Style Name | ||||
| 3.0 TFSI | 740i Sedan | XJ R-Sport RWD | LS 500 RWD | S 450 Sedan |
| Drivetrain | ||||
| All Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive |
| Passenger Capacity | ||||
| 5 | 5 | 5 | 5 | 5 |
| Passenger Doors | ||||
| N/A | N/A | N/A | N/A | N/A |
| Body Style | ||||
| quattro LWB Sedan | Sedan | Sedan | Sedan | Sedan |
| Transmission | ||||
| Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD |
| Detailed Spec Comparison | ||||
| 2018 Audi A8 vs. 2018 BMW 7-Series | 2018 Audi A8 vs. 2018 Jaguar XJ | 2018 Audi A8 vs. 2018 Lexus LS | 2018 Audi A8 vs. 2018 Mercedes-Benz S Class | |
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