Audi S6 vs. BMW M6
iSeeCars' unbiased and data-driven comparison of the Audi S6 and BMW M6 contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the Audi S6 and the BMW M6.
In comparing the Audi S6's and the BMW M6's specifications and ratings, the Audi S6 has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency, resale value and interior volume. The BMW M6 has the advantage in the area of base engine power. Based on this comparison of the Audi S6's and the BMW M6's specifications and ratings, the Audi S6 is a better car than the BMW M6.
Pricing: A used 2018 Audi S6 ranges from $27,225 to $46,986 while a used 2018 BMW M6 is priced between $42,950 to $59,995.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Audi S6 loses 54.6 percent of its value and the BMW M6 loses 56 percent of its value. This means the Audi S6 retains 1.3 percentage points more of its value and has the advantage of higher resale value versus the BMW M6.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Audi S6’s base engine makes 450 horsepower, and the BMW M6 base engine makes 552 horsepower. The S6 is rated to deliver an average of 18 miles per gallon, with a highway range of 475 miles. The M6 is rated to deliver an average of 16 miles per gallon, with a highway range of 422 miles. This gives the Audi S6 the fuel efficiency and maximum range advantage over the BMW M6. Both models use premium unleaded.
Passenger Space Comparison: While both models are midsize cars, the Audi S6 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 M6 has the advantage in the areas of front head room, front leg room and cargo space.
New Car Pricing
Asking Price:
-
Starting MSRP:
$71,900
Category Avg Starting MSRP:
(Luxury Midsize Cars)
$57,329
Category Starting MSRP Range:
(Luxury Midsize Cars)
$24,990 - $119,800
New Car Pricing
Asking Price:
-
Starting MSRP:
$119,800
Category Avg Starting MSRP:
(Luxury Midsize Cars)
$57,329
Category Starting MSRP Range:
(Luxury Midsize Cars)
$24,990 - $119,800
Used Car Pricing
Avg Used Car Price:
$36,599
Price Range:
$27,225 - $46,986
Category Avg Price:
(Luxury Midsize Cars)
$31,667
Category Avg Price Range:
(Luxury Midsize Cars)
$18,314 - $65,017
# Used Cars for Sale Nationally:
9
Avg Mileage of Used Cars for Sale:
60,231
# Good or Great Deals:
0
Used Car Pricing
Avg Used Car Price:
$50,783
Price Range:
$42,950 - $59,995
Category Avg Price:
(Luxury Midsize Cars)
$31,667
Category Avg Price Range:
(Luxury Midsize Cars)
$18,314 - $65,017
# Used Cars for Sale Nationally:
5
Avg Mileage of Used Cars for Sale:
55,634
# Good or Great Deals:
1
Audi S6 Scores & Rankings
Overall Score:
7.3 / 10
Reliability:
7.6 / 10
Retained Value:
7.1 / 10
Safety:
Not available
BMW M6 Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
7.0 / 10
Safety:
Not available
iSeeCars Reliability Insights for Audi S6
Remaining Life Expectancy (years):
2.7
Typical Category Remaining Life Expectancy:
(Luxury Midsize Cars)
5.4
Category Remaining Life Expectancy Range:
(Luxury Midsize Cars)
2 - 8.6
Chance of Reaching 200k Miles for a New Car:
0.1%
iSeeCars Reliability Insights for BMW M6
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
(Luxury Midsize Cars)
5.4
Category Remaining Life Expectancy Range:
(Luxury Midsize Cars)
2 - 8.6
Chance of Reaching 200k Miles for a New Car:
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.8
Typical Category Recalls:
(Luxury Midsize Cars)
1.9
Category Range for Recalls:
(Luxury Midsize Cars)
1 - 27.9
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
3.9
Typical Category Recalls:
(Luxury Midsize Cars)
1.9
Category Range for Recalls:
(Luxury Midsize Cars)
1 - 27.9
Audi S6 Rankings
Ranking
1 out of / 1Ranking
7 out of / 9Ranking
9 out of / 29Ranking
10 out of / 29Ranking
13 out of / 20Ranking
14 out of / 29Ranking
16 out of / 29Ranking
18 out of / 29Ranking
18 out of / 29Ranking
19 out of / 29BMW M6 Rankings
Ranking
4 out of / 29Ranking
6 out of / 29Ranking
21 out of / 29Available Body Styles
Sedan
Available Body Styles
Convertible, Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Audi S6 Trim Levels
4.0T quattro Premium Plus, 4.0T quattro Prestige
BMW M6 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
2024 NHTSA Overall Rating:
5 out of 5 Stars
2024 NHTSA Front Crash Overall Rating:
5 out of 5 Stars
2024 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2024 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2024 NHTSA Overall Rating:
Not yet available
2024 NHTSA Front Crash Overall Rating:
Not yet available
2024 NHTSA Side Crash Overall Rating:
Not yet available
2024 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
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 Specs
Horsepower:
552 hp @ 6000 rpm
Torque:
502 foot-lbs @ 1500 rpm
Power-to-Weight Ratio (higher is better):
0.125 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:
4.4 liters
Engine Configuration:
V
Number of Cylinders:
8
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD
EPA Fuel Economy
(City/Highway/Combined MPG):
14 / 20 / 16
Range (city/hwy):
295 / 422 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Air Suspension:
Standard
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Adaptive Cruise Control:
Available
Cooled/Ventilated Seats:
Available
Heated Steering Wheel:
Available
Massage Seats:
Available
Roof Rack:
Available
Automatic Parking:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Internet Radio:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Air Suspension:
N/A
Alloy wheels:
Standard
Android Auto:
N/A
Apple CarPlay:
Available
Bench Seats:
N/A
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
N/A
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
N/A
Voice Recognition:
Standard
Adaptive Cruise Control:
N/A
Cooled/Ventilated Seats:
Available
Heated Steering Wheel:
Available
Massage Seats:
N/A
Roof Rack:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Internet Radio:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
Standard
Trailer Hitch:
N/A
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Safety Features
Backup camera:
Standard
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 Features
Backup camera:
Standard
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:
97.0 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:
4430 lbs
Width:
82.9 inches
Height:
54.9 inches
Length:
197.5 inches
Wheelbase:
116.7 inches
Ground Clearance:
4.3 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:
20.0 x 9.5 inches
Wheel Type:
aluminum alloy
Tire Size:
265/35ZR20
Exterior Colors
Black
Brilliant Black / Mythos Black Metallic
Blue
Moonlight Blue Metallic / Sepang Blue Pearl Effect
Gray
Daytona Gray Pearl Effect / Tornado Gray Metallic
Red
Misano Red Pearl Effect
Silver
Florett Silver Metallic
White
Glacier White Metallic / Ibis White
Brown
Not available
Orange
Not available
Exterior Colors
Black
Black Sapphire Metallic / Citrin Black Metallic / Ruby Black Metallic
Blue
San Marino Blue Metallic / Tanzanite Blue Metallic
Gray
Moonstone Metallic / Singapore Gray Metallic / Space Gray Metallic
Red
Not available
Silver
Silverstone Metallic
White
Alpine White / Frozen Brilliant White Metallic
Brown
Frozen Bronze Metallic
Orange
Sakhir Orange Metallic
Interior Colors
Black
Black
Gray
Flint Gray
Red
Arras Red
Silver
Lunar Silver
Beige
Not available
Brown
Not available
Orange
Not available
White
Not available
Interior Colors
Black
Black
Gray
Platinum/Black / Silverstone
Red
Sakhir Orange/Black
Silver
Not available
Beige
Champagne
Brown
Amaro Brown / Aragon Brown / Canyon Brown
Orange
Sakhir Orange/Black
White
Opal White / Opal White/Amaro Brown
