2018 Audi A6 vs. Its Competition

2018 Audi A6 image
Aaron Cole Aaron Cole Managing Editor

The Audi S6 best competes with the Mercedes-Benz E43 AMG and BMW M550i xDrive, both of which are newer cars.

The E43 has a raft of new flashy tech and a competent V-6, although it feels a little more relaxed than the Audi.

We haven’t had the chance to drive a new M550i xDrive yet, but we’ll update this space once we do.

The Lexus GS F is wildly fun and brusque, uncommon for Lexus.

Cadillac’s CTS-V is wild for the class and much more raw—we love the idea, if not the execution too.

Put simply, there’s not a bad pick among the crowd.

2018 Audi A6 image2018 Audi A6
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2018 BMW 5-Series image2018 BMW 5-Series
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2018 Cadillac CTS image2018 Cadillac CTS
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2018 Lexus GS image2018 Lexus GS
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2018 Mercedes-Benz E Class image2018 Mercedes-Benz E Class
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Quick Specs
The 2018 Audi S6 stands with an impressive hand: quality interior, great performance, functional shape. It's possible to find better examples from other cars, but they all cost significantly more.
The 2018 BMW 5-Series expands the sedan's already-excellent lineup to include an efficient plug-in hybrid and an uber-quick V-8.
The 2018 Cadillac CTS-V scorches the earth, and leaves the E63 and RS7 with some burn marks.
The 2018 Lexus GS is a worthy rival to its German foes in terms of luxury and handling, but its engine lineup is falling behind the competition.
The 2018 Mercedes-Benz E-Class goes to excess--the right kinds of excess--to preserve its best-of status.
MSRP From    
Gas Mileage    
16 MPG City / 34 MPG Hwy15 MPG City / 36 MPG Hwy14 MPG City / 30 MPG Hwy16 MPG City / 34 MPG Hwy16 MPG City / 30 MPG Hwy
Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Gas/Electric I-4Turbocharged Gas I4Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4
EPA Class    
Midsize CarsCompact CarsMid-SizeMidsize CarsMidsize Cars
Style Name    
2.0 TFSI Premium FWD530e iPerformance Plug-In Hybrid4-Door Sedan 2.0L Turbo RWDGS 300 RWDE 300 RWD Sedan
Front Wheel DriveRear Wheel DriveRear Wheel DriveRear Wheel DriveRear Wheel Drive
Passenger Capacity    
Passenger Doors    
Body Style    
SedanSedan4 Door SedanSedanSedan
Auto-Shift Manual w/ODAutomatic w/ODAutomaticAutomatic w/ODAutomatic w/OD
Detailed Spec Comparison
 2018 Audi A6 vs. 2018 BMW 5-Series2018 Audi A6 vs. 2018 Cadillac CTS2018 Audi A6 vs. 2018 Lexus GS2018 Audi A6 vs. 2018 Mercedes-Benz E Class