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Audi S6 vs. BMW M5

When we compare the Audi S6 to the BMW M5, the Audi S6 has the advantage in the areas of new vehicle base pricing, typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and overall quality score. The BMW M5 has the advantage in the areas of interior volume and base engine power. Based on this comparison of the Audi S6 versus the BMW M5, the Audi S6 is a better car than the BMW M5.

Audi S6 versus BMW M5 Pricing

A one- to five-year-old used Audi S6 ranges from $68,139 to $81,497 while a used BMW M5 from the same model year range is priced between $93,070 to $114,700. For a new model, the Audi S6's price is between $77,238 and $91,269, with the BMW M5 priced between $110,327 and $148,906.

Audi S6 versus BMW M5 Quality Rating

The iSeeCars Overall Quality rating for the Audi S6 is 8.4 out of 10 while the BMW M5's quality rating is 7.9 out of 10. This results in the Audi S6 being ranked 6 out of 29 Best Luxury Midsize Cars and the BMW M5 being ranked 11 out of 29.

Engine Power and Fuel Efficiency Comparison

For engine performance, the Audi S6’s base engine makes 444 horsepower, and the BMW M5 base engine makes 600 horsepower. The S6 is rated to deliver an average of 22 miles per gallon, with a highway range of 502 miles. The M5 is rated to deliver an average of 17 miles per gallon, with a highway range of 422 miles. Both models use premium unleaded.

Passenger Space Comparison

While both models are midsize cars, the BMW M5 has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, front leg room, rear head room, and trunk space. The Audi S6 has the advantage in the areas of rear shoulder room and rear leg room.

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Pricing

New Asking Price:

$77,238 - $91,269

Used Asking Price:

$68,139 - $81,497

5-Year Depreciation (lower is better):

53.9%

Pricing

New Asking Price:

$110,327 - $148,906

Used Asking Price:

$93,070 - $114,700

5-Year Depreciation (lower is better):

54.2%

iSeeCars Scores & Rankings

Overall Score:

8.4 / 10

Reliability:

7.8 / 10

Retained Value:

7.5 / 10

Safety:

10.0 / 10

iSeeCars Scores & Rankings

Overall Score:

7.9 / 10

Reliability:

8.4 / 10

Retained Value:

7.4 / 10

Safety:

Not available

iSeeCars Rankings

6 / 29
8 / 29

iSeeCars Rankings

7 / 29
11 / 29

Summary Review

Not yet available

Summary Review

Not yet available

Pros and Cons

Not yet available

Pros and Cons

Not yet available

Available Body Styles

Sedan

Available Body Styles

Sedan

Available Drivetrain Options

Gasoline

Available Drivetrain Options

Gasoline

Trim Levels

2.9T quattro Premium, 2.9T quattro Prestige, 2.9T quattro Premium Plus

Trim Levels

Base

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):

5 out of 5 Stars

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:

444 hp @ 5700 rpm

Torque:

442 foot-lbs @ 2900 rpm

Power-to-Weight Ratio (higher is better):

0.099 hp per pound

Base Drivetrain Specifications

Horsepower:

600 hp @ 6000 rpm

Torque:

553 foot-lbs @ 1800 rpm

Power-to-Weight Ratio (higher is better):

0.138 hp per pound

Engine Specifications

Engine Size:

2.9 liters

Engine Configuration:

V

Number of Cylinders:

6

Transmission:

Automatic

Standard/Optional Drivetrain Type:

AWD

EPA Fuel Economy (City/Highway/Combined MPG):

19 / 26 / 22

Range (city/hwy):

367 / 502 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:

AWD

EPA Fuel Economy (City/Highway/Combined MPG):

15 / 21 / 17

Range (city/hwy):

302 / 422 miles

Recommended Fuel Type:

Premium Unleaded

Standard/Optional Features

Apple CarPlay:

Standard

Android Auto:

Standard

Wireless Smartphone Charging:

Available

Keyless Entry:

Standard

Keyless Ignition:

Standard

Adaptive Cruise Control:

Available

Heated Seats:

Standard

Cooled/Ventilated Seats:

Available

Leather Upholstery:

Standard

Navigation System:

Standard

Sunroof/Moonroof:

Standard

Heated Steering Wheel:

Standard

Standard/Optional Features

Apple CarPlay:

Standard

Android Auto:

Standard

Wireless Smartphone Charging:

Standard

Keyless Entry:

Standard

Keyless Ignition:

Standard

Adaptive Cruise Control:

Available

Heated Seats:

Standard

Cooled/Ventilated Seats:

Available

Leather Upholstery:

Standard

Navigation System:

Standard

Sunroof/Moonroof:

Available

Heated Steering Wheel:

Standard

Safety Equipment

Forward Collision Warning:

Standard

Pedestrian Detection:

Standard

Lane Departure Warning:

Standard

Lane Keeping Assist:

Available

Blind Spot Monitoring:

Available

Rear Cross-Traffic Alert:

Available

360-Degree Camera:

Available

Rear Seat Reminder:

N/A

Driver Attention Monitoring:

N/A

Safety Equipment

Forward Collision Warning:

Standard

Pedestrian Detection:

Standard

Lane Departure Warning:

Standard

Lane Keeping Assist:

Available

Blind Spot Monitoring:

Standard

Rear Cross-Traffic Alert:

Standard

360-Degree Camera:

Available

Rear Seat Reminder:

N/A

Driver Attention Monitoring:

Standard

Interior Dimensions

Front Head Room:

38 inches

Front Leg Room:

41.3 inches

Front Shoulder Room:

57.8 inches

Rear Head Room:

38.1 inches

Rear Leg Room:

37.4 inches

Rear Shoulder Room:

56.5 inches

Cargo Space:

13.7 cubic feet

Overall Interior Volume:

98.0 cubic feet

Interior Dimensions

Front Head Room:

40.7 inches

Front Leg Room:

41.4 inches

Front Shoulder Room:

58.7 inches

Rear Head Room:

38.5 inches

Rear Leg Room:

36.5 inches

Rear Shoulder Room:

55.9 inches

Cargo Space:

14 cubic feet

Overall Interior Volume:

103.0 cubic feet

Exterior Dimensions

Curb Weight:

4486 lbs

Width:

83.1 inches

Height:

56.9 inches

Length:

195 inches

Wheelbase:

115.3 inches

Ground Clearance:

Not yet available

Exterior Dimensions

Curb Weight:

4345 lbs

Width:

83.7 inches

Height:

58 inches

Length:

196.4 inches

Wheelbase:

117.4 inches

Ground Clearance:

5.2 inches

Standard Wheel/Tire Information

Wheel Size:

21.0 x 8.5 inches

Wheel Type:

alloy

Tire Size:

255/35R21

Standard Wheel/Tire Information

Wheel Size:

19.0 x 9.5 inches

Wheel Type:

painted alloy

Tire Size:

275/40R19