Compare 2016 Audi A8 vs 2016 Cadillac CT6 vs 2016 Mercedes-Benz S Class

2016 Audi A8
X
2016 Cadillac CT6
X
2016 Mercedes-Benz S Class
X
Select style
4-Door Sedan 3.0T
Style MPG City MPG Hwy Invoice MSRP
A8 4-Door Sedan 3.0T 19 29 N/A N/A
A8 L 4-Door Sedan 3.0L TDI 24 36 $79,236 $85,200
A8 L 4-Door Sedan 3.0T 19 29 $75,796 $81,500
A8 L 4-Door Sedan 4.0T Sport 18 29 $84,166 $90,500
A8 L 4-Door Sedan 6.3L 14 22 $128,248 $137,900
S8 4-Door Sedan 15 25 $106,858 $114,900
S8 4-Door Sedan Plus 16 25 $106,858 $114,900
Select style
4-Door Sedan 2.0L Turbo Luxury RWD
Style MPG City MPG Hwy Invoice MSRP
CT6 4-Door Sedan 2.0L Turbo Luxury RWD 22 31 $54,891 $58,395
CT6 4-Door Sedan 2.0L Turbo RWD 22 31 $50,552 $53,495
CT6 4-Door Sedan 3.0L Turbo Luxury AWD 18 26 $60,531 $64,395
CT6 4-Door Sedan 3.0L Turbo Platinum AWD 18 26 $81,779 $87,465
CT6 4-Door Sedan 3.0L Turbo Premium Luxury AWD 18 26 $63,177 $67,570
CT6 4-Door Sedan 3.6L AWD 18 27 $52,442 $55,495
CT6 4-Door Sedan 3.6L Luxury AWD 18 27 $56,771 $60,395
CT6 4-Door Sedan 3.6L Platinum AWD 18 27 $78,039 $83,465
CT6 4-Door Sedan 3.6L Premium Luxury AWD 18 27 $59,437 $63,570
Select style
2-Door Coupe AMG S 63 4MATIC
Style MPG City MPG Hwy Invoice MSRP
S-Class 2-Door Coupe AMG S 63 4MATIC 15 23 $151,729 $163,150
S-Class 2-Door Coupe AMG S 65 RWD 13 20 $217,667 $234,050
S-Class 2-Door Coupe S 550 4MATIC 16 24 $113,042 $121,550
S-Class 4-Door Sedan AMG S 63 4MATIC 15 23 $133,223 $143,250
S-Class 4-Door Sedan AMG S 65 RWD 13 20 $208,925 $224,650
S-Class 4-Door Sedan Maybach S 600 RWD 13 20 $176,096 $189,350
S-Class 4-Door Sedan S 550 4MATIC 16 26 $91,745 $98,650
S-Class 4-Door Sedan S 550 Plug-In Hybrid RWD N/A N/A $88,955 $95,650
S-Class 4-Door Sedan S 550 RWD 17 26 $88,955 $95,650
S-Class 4-Door Sedan S 600 RWD 14 21 $157,217 $169,050

Pricing

Invoice Price
$75,796
$54,891
$151,729

Manufacturer Suggested Retail Price
$81,500
$58,395
$163,150

Monthly Payment Estimate
Coming Soon
$973 / month
$2719 / month

The Car Connection's Take

TCC Rating
8.8
8.8
9.2

TCC’s Bottom Line
The 2016 Audi S8 pairs thrilling acceleration with excellent big-car handling and discreet luxury. With the space of a larger car, the handling of a smaller car, and a starting price in the $50,000s, the CT6 is a large luxury car value. Coupe, Cabriolet, and Maybach versions—and even a Plug-In Hybrid—make the 2016 Mercedes-Benz S-Class far more diverse and adventurous than it used to be; it's now not just a flagship sedan, but a family of flagships.

TCC Likes

TCC Dislikes

Fuel Economy

City
19 mpg 22 mpg 15 mpg

Highway
29 mpg 31 mpg 23 mpg

Vehicle

EPA Classification
Midsize Cars Large Cars Compact Cars

Number of Passenger Doors
- 4 -

EPA Air Pollution Score
- - TBD - -

Interior Dimensions

Passenger Volume (ft³)
115.1 - TBD - -

Front Shoulder Room (in)
59.1 58.3 60.6

Second Leg Room (in)
38.7 40.4 -

Passenger Capacity
5 5 4

Front Leg Room (in)
41.4 42.3 -

Second Head Room (in)
38.1 38.0 36.7

Second Shoulder Room (in)
57.8 56.1 54.1

Front Head Room (in)
37.2 40.1 40

Second Hip Room (in)
- 53.4 -

Front Hip Room (in)
- 55.8 -

Exterior Dimensions

Length, Overall (in)
202.2 204.0 198.6

Height, Overall (in)
57.5 57.9 56

Track Width, Rear (in)
64.4 64.0 64.7

Wheelbase (in)
117.8 122.4 115.9

Width, Max w/o mirrors (in)
76.7 74.0 75.3

Track Width, Front (in)
64.7 63.3 64.7

Min Ground Clearance (in)
- - TBD - -

Liftover Height (in)
- - TBD - -

Cargo Area Dimensions

Trunk Volume (ft³)
14.2 15.3 10.4

Brakes

Front Brake Rotor Diam x Thickness (in)
15 - TBD - 15.4

Drum - Rear (Yes or )
NA NA NA

Brake ABS System
4-Wheel 4-Wheel 4-Wheel

Disc - Rear (Yes or )
Yes Yes Yes

Rear Brake Rotor Diam x Thickness (in)
14 - TBD - 14.4

Brake Type
4-Wheel Disc Pwr 4-Wheel Disc

Rear Drum Diam x Width (in)
NA NA NA

Disc - Front (Yes or )
Yes Yes Yes

Fuel Tank

Fuel Tank Capacity, Approx (gal)
21.7 19.5 20.7

Steering

Turning Diameter - Curb to Curb (ft)
40.4 - TBD - -

Steering Type
Rack-Pinion Electric Rack & Pinion Rack-Pinion

Turning Diameter - Wall to Wall (ft)
- - TBD - -

Steering Ratio (:1), Overall
- - TBD - -

Lock to Lock Turns (Steering)
- - TBD - -

Tires

Front Tire Size
P255/45HR19 P235/50R18 P255/45YR20

Spare Tire Size
Compact T135/70R18 NA

Front Tire Order Code
NA R3X NA

Spare Tire Order Code
NA ZCD NA

Rear Tire Size
P255/45HR19 P235/50R18 P285/40YR20

Rear Tire Order Code
NA R3X NA

Weight Information

Base Curb Weight (lbs)
4365 3683 4678

Wheels

Spare Wheel Size (in)
Compact 18 x - TBD - NA

Rear Wheel Material
Aluminum Aluminum Aluminum

Rear Wheel Size (in)
19 X 9 18 x 8 20 X 9.5

Front Wheel Material
Aluminum Aluminum Aluminum

Spare Wheel Material
Aluminum - TBD - NA

Front Wheel Size (in)
19 X 9 18 x 8 20 X 8.5

Electrical

Maximum Alternator Capacity (amps)
190 - TBD - 150

Cold Cranking Amps @ 0° F (Primary)
- - TBD - 520

Engine

SAE Net Torque @ RPM
325 @ 2900 295 @ 3000 664 @ 2250

Engine Order Code
NA LTG NA

Displacement
3.0 L/183 2.0L/122 5.5 L/333

SAE Net Horsepower @ RPM
333 @ 5500 265 @ 5500 577 @ 5500

Engine Type
Intercooled Supercharger Premium Unleaded V-6 Turbocharged Gas I4 Twin Turbo Premium Unleaded V-8

Fuel System
Gasoline Direct Injection Direct Injection Gasoline Direct Injection

Mileage

Fuel Economy Est-Combined (MPG)
22 25 18

EPA Fuel Economy Est - Hwy (MPG)
29 31 23

EPA Fuel Economy Est - City (MPG)
19 22 15

Transmission

First Gear Ratio (:1)
4.71 - TBD - 4.34

Final Drive Axle Ratio (:1)
3.20 3.27 2.47

Third Gear Ratio (:1)
2.11 - TBD - 1.92

Trans Type
8 8 7

Eighth Gear Ratio (:1)
0.67 - TBD - -

Drivetrain
All Wheel Drive Rear Wheel Drive All Wheel Drive

Fifth Gear Ratio (:1)
1.28 - TBD - 1.00

Trans Description Cont. Again
NA NA NA

Reverse Ratio (:1)
3.32 - TBD - 3.42

Second Gear Ratio (:1)
3.14 - TBD - 2.89

Trans Order Code
NA M5N 427

Seventh Gear Ratio (:1)
0.84 - TBD - 0.73

Fourth Gear Ratio (:1)
1.67 - TBD - 1.37

Trans Description Cont.
Automatic w/OD Automatic Automatic w/OD

Sixth Gear Ratio (:1)
1.00 - TBD - 0.82

Clutch Size (in)
- NA -

Summary

Vehicle Name
Audi A8 Cadillac CT6 Mercedes-Benz S-Class

Body Style
quattro Sedan Sedan 4MATIC Coupe

Suspension

Suspension Type - Front (Cont.)
Multi-Link NA Multi-Link

Suspension Type - Rear
Multi-Link Independent Multi-Link

Suspension Type - Rear (Cont.)
Multi-Link NA Multi-Link

Suspension Type - Front
Multi-Link Independent Multi-Link

Stabilizer Bar Diameter - Rear (in)
- - TBD - -

Shock Absorber Diameter - Front (mm)
- - TBD - -

Stabilizer Bar Diameter - Front (in)
- - TBD - -

Shock Absorber Diameter - Rear (mm)
- - TBD - -

Emissions

Tons/yr of CO2 Emissions @ 15K mi/year
8.2 7.1 9.8

EPA Greenhouse Gas Score
- 6 -

Trailering

Wt Distributing Hitch - Max Trailer Wt. (lbs)
- N/A -

Dead Weight Hitch - Max Tongue Wt. (lbs)
- N/A -

Wt Distributing Hitch - Max Tongue Wt. (lbs)
- N/A -

Dead Weight Hitch - Max Trailer Wt. (lbs)
- N/A -

Cooling System

Total Cooling System Capacity (qts)
- - TBD - -

Get FREE Dealer Quotes

From dealers near you
Go!