2015 Audi S6

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Rating7.8

Ranked #13 in 

Midsize Sedan
Write Review
$75,500
Starting Price 
Nathan Dyer's image
Nathan Dyer 

Senior Editor,

Updated on November 3, 2023

ProsConsWhat's New

Strong power from the V8 engine

Rivals offer similar levels of performance for less price

No major changes except for a few cosmetic upgrades

Low noise and civilized ride quality

Fuel economy could be improved

High-tech interior with an elegant design

Class-leading safety ratings

Specs & Features

$75,500

price

420 hp @ 5500 rpm

horsepower

406 lb.-ft. @ 1400 rpm

torque

7-Speed Automated Manual

transmission

4.0L 8cyl AWD 7AM

engine

-

basic warranty

Overview

The 2015 Audi S6makes for an excellent contender in the midsize sedan class. With a single trim on offer, the Audi S6 Sedan has a base MSRP of $75,500 competing directly with the Mercedes-Benz E-Class, the Cadillac CTS-V Sport, and the BMW 5 Series 550i. Only a 4.0L twin-turbocharged V8 engine is offered, mated to a 7-speed automatic transmission. Together, they produce 420 horsepower and 406 lb-ft of torque. Accelerating from 0-60 in 4.5 seconds, the Audi S6 Sedan maintains a combined fuel economy of 20 MPG. Audi offers the S6 Sedan in more than 30 stunning colors, with the Phantom Black Pearl Effect being a particular favorite of ours.

 

Buying Advice

The 2015 Audi S6 comes in one well-equipped trim level that gives it an edge over all other cars in its segment. We recommend opting in for the optional Cold weather package for added convenience.

Trims

    Base
    $75,500 onwards
    • 19-inch silver aluminum Wheels
    • 1St row LCD monitor
    • A-Spec Sport Seats
    • Dual zone automatic front air conditioning
    • Fog/Driving lights
    • Front passengers heated-cushion
    • Rear air conditioning with controls
    • Remote keyless entry
    • Siriusxm AM/FM/HD/Satellite
    • Sliding and tilting glass Sunroof

Compare to similar cars

Price

$75,500

Engine

Gasoline

Rating

7.8

Horsepower

420 hp @ 5500 rpm

Torque

406 lb.-ft. @ 1400 rpm

Capacity

5

Read Review

$106,500

Gasoline

8.67

560 hp @ 5700 rpm

516 lb.-ft. @ 1750 rpm

4

Read Review

$93,600

Gasoline

8.47

560 hp @ 6000 rpm

500 lb.-ft. @ 1500 rpm

5

Read Review

$49,950- $67,200

Gasoline

7.56

240 hp @ 5000 rpm

258 lb.-ft. @ 1450 rpm

5

Read Review

$45,345- $69,340

Gasoline

7.69

272 hp @ 5500 rpm

295 lb.-ft. @ 3000 rpm

5

Read Review

$69,800- $77,900

Gasoline

7.68

345 hp @ 5250 rpm

369 lb.-ft. @ 1750 rpm

5

Read Review

$51,800- $67,750

Gasoline

8.66

302 hp @ 6500 rpm

273 lb.-ft. @ 3500 rpm

5

Read Review

$65,990- $75,700

Gasoline

8.04

329 hp @ 5250 rpm

354 lb.-ft. @ 1600 rpm

4

Read Review

$91,000- $93,600

Gasoline

7.25

550 hp @ 5250 rpm

531 lb.-ft. @ 1750 rpm

5

Read Review

$100,600- $103,200

Gasoline

7.94

577 hp @ 5500 rpm

590 lb.-ft. @ 2000 rpm

5

Read Review

2015 Audi S6 vs competitor's 0-60

    Car Name
    0-60 MPH
    Quarter Mile
    Top Speed
    SourceCompare
    2015 Audi S6

    Ranked #4

    4.5 sec13.1 sec155 mph
    2015 BMW M5

    Ranked #1

    3.7 sec11.9 sec-
    3.7 sec12.0 sec174 mph
    3.97 sec--
    4.08 sec--
    5.3 sec13.7 sec163 mph

    2015 Audi S6 vs competitor's MPG

      Car Name
      MPG City
      MPG Highway
      MPG Combined
      Fuel Tank Capacity
      Range (C/H)
      SourceCompare
      2015 Audi S6

      Ranked #3

      17 mpg27 mpg20 mpg19.8 gal.336.6/534.6 mi.
      23 mpg34 mpg27 mpg18.5 gal.425.5/629 mi.
      20 mpg30 mpg24 mpg21.1 gal.422/633 mi.
      20 mpg30 mpg24 mpg19 gal.380/570 mi.
      15 mpg25 mpg19 mpg21.1 gal.316.5/527.5 mi.
      16 mpg27 mpg19 mpg19.8 gal.-

      2015 Audi S6 vs competitor's dimensions

        Car Name
        Length
        Width
        Height
        Ground Clearance
        Wheelbase
        SourceCompare
        2015 Audi S6

        Ranked #7

        193.9 in.73.8 in.57.8 in.4.6 in.114.7 in.

        2015 Aston Martin Rapide S

        Ranked #1

        197.6 in.75.9 in.53.5 in.4 in.117.7 in.
        197.3 in.75.2 in.55.8 in.4 in.114.8 in.

        2015 Mercedes-Benz AMG CLS 63 S

        Ranked #3

        196.7 in.74.1 in.55.4 in.5 in.113.2 in.
        195.7 in.76.6 in.57.5 in.4.5 in.118 in.
        195.5 in.72.2 in.57.2 in.6 in.114.6 in.

        2015 Audi S6 vs competitor's trunk space

          Car Name
          Trunk Capacity
          Passenger Volume
          Max Trunk Volume
          SourceCompare
          2015 Audi S6

          Ranked #3

          14.1 cu.ft.98 cu.ft.57.5 cu.ft.
          323.1 cu.ft.101.5 cu.ft.323.1 cu.ft.
          2015 BMW M5

          Ranked #2

          14 cu.ft.133.5 cu.ft.74.4 cu.ft.
          15.3 cu.ft.104.3 cu.ft.15.3 cu.ft.
          13.7 cu.ft.97 cu.ft.13.7 cu.ft.
          14 cu.ft.94.7 cu.ft.15 cu.ft.

          2015 Audi S6 vs competitor's cargo space

            Car Name
            Cargo Volume
            Cargo Volume w/ Seat Area
            Max Cargo Volume
            Bed Length
            SourceCompare
            2015 Audi S6

            Ranked #1

            57.5 cu.ft.14.1 cu.ft.57.5 cu.ft.76 ft.
            -15.9 cu.ft.--
            2015 BMW M5

            Ranked #3

            74.4 cu.ft.14 cu.ft.74.4 cu.ft.-
            15.1 cu.ft.13.7 cu.ft.13.7 cu.ft.152 ft.
            15 cu.ft.14 cu.ft.15 cu.ft.-
            -18 cu.ft.--

            2015 Audi S6 vs competitor's towing capacity

              Car Name
              Towing Capacity
              Payload Capacity
              Weight
              SourceCompare
              2015 Audi S6

              Ranked #2

              -1102 lbs.4398 lbs.
              1000 lbs.-3620 lbs.
              --4431 lbs.
              --3990 lbs.
              --4475 lbs.
              --4387 lbs.

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