At this rarefied level, the BMW 6-Series squares off best against the Mercedes-Benz S-Class Coupe and the Lexus LC, both of which deliver astounding levels of refinement and performance.
But if you want a little more zest, the Porsche 911 stands by with its now-turbocharged flat-6 engine thrumming alone.
The Maserati GranTurismo is nearly a classic given its age, but it remains as much of a head-turner as anything else in this segment.
And if you're after wind-in-the-face and sunburn-on-the-scalp driving, the Mercedes-Benz SL-Class coddles like few vehicles ever have.
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 2018 BMW 6-SeriesBrowse Used Listings |  2018 Lexus LCBrowse Used Listings |  2018 Mercedes-Benz S ClassBrowse Used Listings |  2018 Mercedes-Benz SL ClassBrowse Used Listings |  2018 Porsche 911Browse Used Listings |  2018 Maserati GranTurismoBrowse Used Listings |
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| Quick Specs | |||||
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One of the ultimate grand-tourers, the BMW 6-Series stands ready to eat up miles, buyers' budgets, and premium unleaded. |
Lexus aims in a completely new direction with its 2018 LC 500 Coupe—and it’s an exciting one. |
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. |
The 2018 Mercedes-Benz SL-Class represents the pinnacle of droptop grand touring cruisers. But what does that mean anymore? |
The 2018 Porsche 911 is a superlative sports car that has defied its age. It’s a classic, but performs better than nearly any newcomer to its arena. | |
| MSRP From | |||||
| $70,200 | $92,000 | $89,900 | $88,200 | $91,100 | $148,850 |
| Gas Mileage | |||||
| 14 MPG City / 29 MPG Hwy | 16 MPG City / 35 MPG Hwy | 13 MPG City / 28 MPG Hwy | 13 MPG City / 28 MPG Hwy | 15 MPG City / 29 MPG Hwy | 13 MPG City / 20 MPG Hwy |
| Engine | |||||
| Intercooled Turbo Premium Unleaded I-6 | Premium Unleaded V-8 | Twin Turbo Premium Unleaded V-6 | Twin Turbo Premium Unleaded V-6 | Twin Turbo Premium Unleaded H-6 | Premium Unleaded V-8 |
| EPA Class | |||||
| Large Cars | Subcompact Cars | Large Cars | Two Seaters | Minicompact Cars | Subcompact Cars |
| Style Name | |||||
| 640i xDrive Gran Turismo | LC 500 RWD | S 450 Sedan | SL 450 Roadster | Carrera Coupe | Sport 4.7L |
| Drivetrain | |||||
| All Wheel | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive |
| Passenger Capacity | |||||
| 5 | 4 | 5 | 2 | 4 | 4 |
| Passenger Doors | |||||
| N/A | N/A | N/A | N/A | N/A | N/A |
| Body Style | |||||
| Hatchback | Coupe | Sedan | Roadster | Coupe | Convertible |
| Transmission | |||||
| Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD | Manual w/OD | Automatic w/OD |
| Detailed Spec Comparison | |||||
| 2018 BMW 6-Series vs. 2018 Lexus LC | 2018 BMW 6-Series vs. 2018 Mercedes-Benz S Class | 2018 BMW 6-Series vs. 2018 Mercedes-Benz SL Class | 2018 BMW 6-Series vs. 2018 Porsche 911 | 2018 BMW 6-Series vs. 2018 Maserati GranTurismo | |
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