Audi S6 vs. BMW 6 Series
When comparing the Audi S6's and the BMW 6 Series's specifications and ratings, the Audi S6 has the advantage in the areas of reliability, resale value, interior volume, overall quality score and base engine power. The BMW 6 Series has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency. Based on this comparison of the Audi S6's and the BMW 6 Series's specifications and ratings, the Audi S6 is a better car than the BMW 6 Series.
Audi S6 vs. BMW 6 Series Pricing
A used 2018 Audi S6 ranges from $30,690 to $47,988 while a used 2018 BMW 6 Series is priced between $28,348 to $49,243.
Audi S6 vs. BMW 6 Series Resale/Retained Value
Looking at the 5-year depreciation rate for both models, the Audi S6 loses 53.9 percent of its value and the BMW 6 Series loses 59.2 percent of its value. This means the Audi S6 retains 5.3 percentage points more of its value and has the advantage of higher resale value versus the BMW 6 Series.
Audi S6 vs. BMW 6 Series Quality Rating
The iSeeCars Overall Quality rating for the Audi S6 is 7.7 out of 10 while the BMW 6 Series' quality rating is 7.0 out of 10. This results in the Audi S6 being ranked 16 out of 29 Best Luxury Midsize Cars and the BMW 6 Series being ranked 16 out of 24 Best Luxury Large Cars.
Audi S6 vs. BMW 6 Series Reliability Rating
iSeeCars’ Reliability Rating for the Audi S6 is 7.8 out of 10. For the BMW 6 Series the reliability rating is 7.1 out of 10. This gives the Audi S6 a slight advantage in reliability compared to the BMW 6 Series.
Engine Power and Fuel Efficiency Comparison
For engine performance, the Audi S6’s base engine makes 450 horsepower, and the BMW 6 Series base engine makes 315 horsepower. The S6 is rated to deliver an average of 18 miles per gallon, with a highway range of 475 miles. The 6 Series is rated to deliver an average of 23 miles per gallon, with a highway range of 537 miles. This gives the BMW 6 Series the fuel efficiency and maximum range advantage over the Audi S6. Both models use premium unleaded.
Passenger Space Comparison
The Audi S6, a midsize car, has the advantage of offering more interior volume, reflected in more front shoulder room, rear head room, rear shoulder room and rear leg room. The BMW 6 Series, a large car, has the advantage in the areas of front head room, front leg room and cargo space.
Pricing
New Asking Price:
-
Used Asking Price:
30690 - 47988
5-Year Depreciation (lower is better):
0.538692
Pricing
New Asking Price:
-
Used Asking Price:
28348 - 49243
5-Year Depreciation (lower is better):
0.592112
Audi S6 Scores & Rankings
Overall Score:
7.65 / 10
Reliability:
7.8 / 10
Retained Value:
7.5 / 10
Safety:
Not available
BMW 6 Series Scores & Rankings
Overall Score:
7.030344 / 10
Reliability:
7.060688 / 10
Retained Value:
7.0 / 10
Safety:
Not available
Audi S6 Rankings
Ranking
6 out of / 11Ranking
10 out of / 29Ranking
13 out of / 29Ranking
13 out of / 20Ranking
16 out of / 29Ranking
18 out of / 29Ranking
18 out of / 29Ranking
19 out of / 29BMW 6 Series Rankings
Ranking
1 out of / 24Ranking
6 out of / 24Ranking
11 out of / 11Ranking
15 out of / 24Ranking
16 out of / 24Ranking
19 out of / 24Available Body Styles
Sedan
Available Body Styles
Convertible, Hatchback, Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Audi S6 Trim Levels
4.0T quattro Premium Plus, 4.0T quattro Prestige
BMW 6 Series Trim Levels
Not yet available
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
IIHS Safety Rating:
Not yet available
Base Drivetrain Specifications
Horsepower:
450 hp @ 5800 rpm
Torque:
406 foot-lbs @ 1400 rpm
Power-to-Weight Ratio (higher is better):
0.102 hp per pound
Base Drivetrain Specifications
Horsepower:
315 hp @ 5800 rpm
Torque:
330 foot-lbs @ 1300 rpm
Power-to-Weight Ratio (higher is better):
0.076 hp per pound
Engine Specifications
Engine Size:
4 liters
Engine Configuration:
V
Number of Cylinders:
8
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
16 / 24 / 18
Range (city/hwy):
317 / 475 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
3 liters
Engine Configuration:
Inline
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
20 / 29 / 23
Range (city/hwy):
370 / 537 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Android Auto:
Standard
Apple Car Play:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Sunroof/Moonroof:
Standard
Adaptive Cruise Control:
Available
Cooled/Ventilated Seats:
Available
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Android Auto:
N/A
Apple Car Play:
Available
Heated Seats
Standard
Heated Steering Wheel:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Sunroof/Moonroof:
Standard
Adaptive Cruise Control:
Available
Cooled/Ventilated Seats:
Available
Wireless Smartphone Charging:
Standard
Safety Equipment
Blind Spot Monitoring:
Standard
Forward Collision Warning:
Standard
360-Degree Camera:
Available
Driver Attention Monitoring:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Equipment
Blind Spot Monitoring:
N/A
Forward Collision Warning:
N/A
360-Degree Camera:
N/A
Driver Attention Monitoring:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
37.2 inches
Front Leg Room:
41.3 inches
Front Shoulder Room:
57.5 inches
Rear Head Room:
37.8 inches
Rear Leg Room:
37.4 inches
Rear Shoulder Room:
56.3 inches
Cargo Space:
14.1 cubic feet
Overall Interior Volume:
98.0 cubic feet
Interior Dimensions
Front Head Room:
40.6 inches
Front Leg Room:
42.1 inches
Front Shoulder Room:
56.7 inches
Rear Head Room:
37 inches
Rear Leg Room:
35.3 inches
Rear Shoulder Room:
54.6 inches
Cargo Space:
16.2 cubic feet
Overall Interior Volume:
97.3 cubic feet
Exterior Dimensions
Curb Weight:
4398 lbs
Width:
82.1 inches
Height:
56.8 inches
Length:
194.4 inches
Wheelbase:
114.8 inches
Ground Clearance:
4.6 inches
Exterior Dimensions
Curb Weight:
4165 lbs
Width:
82.3 inches
Height:
54.8 inches
Length:
197.1 inches
Wheelbase:
116.9 inches
Ground Clearance:
5 inches
Standard Wheel/Tire Information
Wheel Size:
20.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
255/35R20
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.0 inches
Wheel Type:
aluminum alloy
Tire Size:
245/45R18