Once unique as a four-door coupe, forging new ground in style, the competition has filled in the segment with a bevy of alternatives.
The Audi A7, for example, is perhaps even more delightfully styled, and offers its own high-tech web-connected system, but is similarly expensive and only available with a supercharged V-6 engine.
The Infiniti Q70 is the low-price leader of this group, but instead of a high-performance option, Infiniti offers a hybrid version, though the interior and exterior are nearly a match for the Mercedes' opulence and style.
The Jaguar XF isn't a four-door coupe, but has its own unique style, and in XFR trim, can give the CLS63 AMG a serious run for its money.
Porsche's Panamera may seem an unlikely comparison, but its higher price brings far better rear-seat room and incredible performance, though the look won't please everyone's eye.
The Cadillac CTS-V is even faster than either the Jaguar or the CLS63 AMG, but is somewhat less luxurious--and less expensive.
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 2014 Mercedes-Benz CLS ClassBrowse Used Listings |  2014 Audi A7Browse Used Listings |  2014 INFINITI Q70Browse Used Listings |  2014 Jaguar XFBrowse Used Listings |  2014 Porsche PanameraBrowse Used Listings |
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| Quick Specs | ||||
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The 2014 Mercedes-Benz CLS retains its fashion-forward look, while adding efficiency and, in AMG form, even more impressive performance. |
The basic 2014 Audi A7 is gorgeous, yes--but you'll swoon from the heady mix of raw sex appeal and torrid performance in the S7 and RS 7. |
The 2014 Infiniti Q70 sedan range is fast, fun-to-drive, better to look at, and comfortable--a world-class combination. |
With backseat space as the one caveat, the 2014 Jaguar XF lineup can at once be refined, nimble, and a scorcher of a performer in XFR or exclusive XFR-S guise. |
The 2014 Porsche Panamera adds to the desirability of an already heady mix of performance, style, and functionality. |
| MSRP From | ||||
| $72,100 | $64,500 | $49,600 | $46,975 | $78,100 |
| Gas Mileage | ||||
| 16 MPG City / 27 MPG Hwy | 16 MPG City / 38 MPG Hwy | 16 MPG City / 34 MPG Hwy | 15 MPG City / 30 MPG Hwy | 15 MPG City / 30 MPG Hwy |
| Engine | ||||
| Twin Turbo Premium Unleaded V-8 | Intercooled Supercharger Premium Unleaded V-6 | Premium Unleaded V-6 | Intercooled Turbo Premium Unleaded I-4 | Premium Unleaded V-6 |
| EPA Class | ||||
| Compact Cars | Mid-Size Cars | Mid-Size Cars | Mid-Size Cars | Large Cars |
| Style Name | ||||
| 4-Door Sedan CLS 550 RWD | 4-Door HB quattro 3.0 Prestige | 4-Door Sedan V6 RWD | 4-Door Sedan I4 T RWD | 4-Door HB |
| Drivetrain | ||||
| Rear Wheel Drive | All Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive |
| Passenger Capacity | ||||
| 4 | 5 | 5 | 5 | 4 |
| Passenger Doors | ||||
| N/A | N/A | N/A | N/A | N/A |
| Body Style | ||||
| Sedan | quattro Sportback | Sedan | Sedan | Hatchback |
| Transmission | ||||
| Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD | Auto-Shift Manual w/OD |
| Detailed Spec Comparison | ||||
| 2014 Mercedes-Benz CLS Class vs. 2014 Audi A7 | 2014 Mercedes-Benz CLS Class vs. 2014 INFINITI Q70 | 2014 Mercedes-Benz CLS Class vs. 2014 Jaguar XF | 2014 Mercedes-Benz CLS Class vs. 2014 Porsche Panamera | |
