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BMW's turbo sixes are swell, and the M5 is dazzling with its rev-matching manual.
The Audi A6 is fine, though we prefer its sleeker hatchback A7 cousin; the front- or all-wheel-drive sedan can be had with a supercharged V-6 and tech wizardry like Google Earth mapping and S-line sport trim.
The Cadillac CTS gets the nod for standout American styling and a lineup that includes sedan, coupe, and wagon, plus the power-crazy V-Series; the new sedan improves rear-seat room and interior quality.
Finally, the Infiniti Q70 may be the GS' most direct challenger: you'll find great handling, a charming fluid style and rippling V-6 power, but some coarse drivetrain noises.
And then there's the badge and the brand: What does Infiniti mean today?.
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 2015 Lexus GSBrowse Used Listings |  2015 Audi A6Browse Used Listings |  2015 BMW 5-SeriesBrowse Used Listings |  2015 Cadillac CTSBrowse Used Listings |  2015 Mercedes-Benz E ClassBrowse Used Listings |
|---|---|---|---|---|
| Quick Specs | ||||
The 2015 Lexus GS family offers a classic, conservative sport-sedan profile -- and enough performance to please most -- but overlays it with as much luxury and technology as you please. |
The 2015 Audi A6 may look a little sedate, but it's a brilliant performer–thanks to its diesel-driven TDI, the supercharged A6, or turbocharged S6 versions. |
Whether it's more of a classic sport sedan or a technology-packed tourer you seek, the 2015 BMW 5-Series fills both roles admirably. |
The 2015 Cadillac CTS sedan is a stunner–especially in V-Sport guise–and it looks great, too. |
The 2015 Mercedes-Benz E-Class lineup is many vehicles in one, with comfort and luxury across the board and sporty manners for those who want them. |
| MSRP From | ||||
| $48,600 | $44,800 | $49,950 | $45,345 | $51,800 |
| Gas Mileage | ||||
| 19 MPG City / 34 MPG Hwy | 17 MPG City / 38 MPG Hwy | 14 MPG City / 38 MPG Hwy | 14 MPG City / 30 MPG Hwy | 15 MPG City / 42 MPG Hwy |
| Engine | ||||
| Premium Unleaded V-6 | Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 | Turbocharged Gas I4 | Twin Turbo Diesel I-4 |
| EPA Class | ||||
| Mid-Size Cars | Mid-Size Cars | Mid-Size Cars | Mid-Size | Mid-Size Cars |
| Style Name | ||||
| 4-Door Sedan RWD | 4-Door Sedan FrontTrak 2.0T Premium | 4-Door Sedan 528i RWD | 4-Door Sedan 2.0L Turbo RWD | 4-Door Sedan E 250 BlueTEC Sport RWD |
| Drivetrain | ||||
| Rear Wheel Drive | Front 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 | ||||
| Sedan | FrontTrak Sedan | Sedan | 4 Door Sedan | Sedan |
| Transmission | ||||
| Automatic w/OD | CVT w/OD | Automatic w/OD | Automatic | Automatic w/OD |
| Detailed Spec Comparison | ||||
| 2015 Lexus GS vs. 2015 Audi A6 | 2015 Lexus GS vs. 2015 BMW 5-Series | 2015 Lexus GS vs. 2015 Cadillac CTS | 2015 Lexus GS vs. 2015 Mercedes-Benz E Class | |
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