Audi S8 vs. Mercedes-Benz S-Class

Front passenger 3/4 w/ wheels turned.
VS
Designo Mocha Black Metallic

Key Specs

Kelley Blue Book Value

Kelley Blue Book Value
$82,070 - $89,407
Not Available

Expert Rating

Expert Rating
Not Available

Owner Reviews

Owner Reviews
4.83 / 5
6 Reviews

Horsepower

Horsepower
605 hp
603 hp

Engine Type

Engine Type
4.0 TFSI 8 Cylinder 605 HP
4.0L V8 Biturbo
4.0L Biturbo V8

Interior Features

HeadsUp Display

HeadsUp Display
Not Available
Optional

Heated Steering Wheel

Heated Steering Wheel
Optional
Optional

Premium Sound System

Premium Sound System
Optional
Optional

Front Leg Room

Front Leg Room
41.4 in.
41.4 - 41.7 in.

Front Head Room

Front Head Room
37.2 in.
37.7 - 42.1 in.

Rear Leg Room

Rear Leg Room
38.7 in.
33.4 - 43 in.

Second Head Room

Second Head Room
38.1 in.
36.7 - 39.2 in.

Trunk Volume

Trunk Volume
14.2 cu. ft.
7 - 18 cu. ft.

Entertainment System

Entertainment System
Not Available
Optional

Climate Control

Climate Control
Not Available
Optional

AC

AC
Not Available
Optional

Dual Zone

Dual Zone
Not Available
Optional

Passengers

Passengers
5
4 - 5

Heated Rear Seats

Heated Rear Seats
Optional
Optional

Seat Memory

Seat Memory
Not Available
Optional

Pass Through Rear Seat

Pass Through Rear Seat
Optional
Not Available

Seat Massage

Seat Massage
Not Available
Optional

Exterior Features

Rear Spoiler

Rear Spoiler
Optional
Not Available

Tire Width

Tire Width

Wheelbase

Wheelbase
117.9 in.
115.9 - 124.6 in.

Turning Radius

Turning Radius
40.4 ft.
40.4 ft.

Length

Length
202.6 in.
198.9 - 208.2 in.

Width

Width
76.7 in.
75.3 - 75.4 in.

Mechanical Specs

Weight

Weight
4685 .lbs
4564 - 4817 .lbs

Horsepower

Horsepower
605 hp
603 hp

Torque

Torque
517 ft. lbs.
664 ft. lbs.

Fuel Capacity

Fuel Capacity
21.7 gal.
20.7 - 24.3 gal.

Combined

Combined
7 - 12 mpg
16 - 26 mpg

City

City
14 mpg
15 - 17 mpg

Highway

Highway
24 mpg
24 - 27 mpg

Manual Mode

Manual Mode
Optional
Not Available

Safety Features

Adaptive Cruise Control

Adaptive Cruise Control
Optional
Optional

Night Vision

Night Vision
Optional
Optional

Lane Keeping Assist

Lane Keeping Assist
Optional
Optional

Lane Departure Warning

Lane Departure Warning
Optional
Optional

Seatbelt Airbag

Seatbelt Airbag
Not Available
Optional

Tech Specs

Vehicle Name

Vehicle Name
Audi S8 plus
Mercedes-Benz S-Class

Body Style

Body Style
quattro Sedan
4MATIC Cabriolet, 4MATIC Coupe, 4MATIC Sedan

Drivetrain

Drivetrain
All Wheel Drive
All Wheel Drive

EPA Classification

EPA Classification
Mid-Size Cars
Compact Cars

Passenger Capacity

Passenger Capacity
5
4 - 5

Passenger Volume

Passenger Volume
115.1 ft³.
Not Available

Base Curb Weight

Base Curb Weight
4685 lbs.
4564 - 4817 lbs.

Fuel Economy Est-Combined

Fuel Economy Est-Combined
18 mpg.
18 - 20 mpg.

EPA Fuel Economy Est - City

EPA Fuel Economy Est - City
14 mpg.
15 - 17 mpg.

EPA Fuel Economy Est - Hwy

EPA Fuel Economy Est - Hwy
24 mpg.
24 - 27 mpg.

Engine Type

Engine Type
Twin Turbo Premium Unleaded V-8
Twin Turbo Premium Unleaded V-8

Displacement

Displacement
4.0 L/244
4.0 L/243

Fuel System

Fuel System
Gasoline Direct Injection
Gasoline Direct Injection

Trans Type

Trans Type
8
9

Trans Description Cont.

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

First Gear Ratio (:1)

First Gear Ratio (:1)
4.71
5.50

Second Gear Ratio (:1)

Second Gear Ratio (:1)
3.14
3.33

Third Gear Ratio (:1)

Third Gear Ratio (:1)
2.11
2.31

Fourth Gear Ratio (:1)

Fourth Gear Ratio (:1)
1.67
1.66

Fifth Gear Ratio (:1)

Fifth Gear Ratio (:1)
1.28
1.21

Sixth Gear Ratio (:1)

Sixth Gear Ratio (:1)
1.00
1.00

Reverse Ratio (:1)

Reverse Ratio (:1)
3.32
4.93

Final Drive Axle Ratio (:1)

Final Drive Axle Ratio (:1)
3.20
2.47

Tons/yr of CO2 Emissions @ 15K mi/year

Tons/yr of CO2 Emissions @ 15K mi/year
9.8
8.8 - 9.8

Maximum Alternator Capacity (amps)

Maximum Alternator Capacity (amps)
190
150

Suspension Type - Front

Suspension Type - Front
Multi-Link
Multi-Link

Suspension Type - Rear

Suspension Type - Rear
Multi-Link
Multi-Link

Suspension Type - Front (Cont.)

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

Suspension Type - Rear (Cont.)

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

Front Tire Size

Front Tire Size
P275/35YR21
P255/40YR20

Rear Tire Size

Rear Tire Size
P275/35YR21
P285/35YR20

Spare Tire Size

Spare Tire Size
Compact
Not Available

Front Wheel Size

Front Wheel Size
21 X 9 in.
20 X 8.5 in.

Rear Wheel Size

Rear Wheel Size
21 X 9 in.
20 X 9.5 in.

Spare Wheel Size

Spare Wheel Size
Compact in.
Not Available

Front Wheel Material

Front Wheel Material
Aluminum
Aluminum - Forged Aluminum

Rear Wheel Material

Rear Wheel Material
Aluminum
Aluminum - Forged Aluminum

Spare Wheel Material

Spare Wheel Material
Aluminum
Not Available

Steering Type

Steering Type
Rack-Pinion
Rack-Pinion

Turning Diameter - Curb to Curb

Turning Diameter - Curb to Curb
40.4 ft.
40.4 ft.

Brake Type

Brake Type
4-Wheel Disc
4-Wheel Disc

Brake ABS System

Brake ABS System
4-Wheel
4-Wheel

Disc - Front

Disc - Front
Yes
Yes

Disc - Rear

Disc - Rear
Yes
Yes

Front Brake Rotor Diam x Thickness

Front Brake Rotor Diam x Thickness
15.7 in.
15.4 - 16.5 in.

Rear Brake Rotor Diam x Thickness

Rear Brake Rotor Diam x Thickness
14 - 14.6 in.
14.2 in.

Fuel Tank Capacity, Approx

Fuel Tank Capacity, Approx
21.7 gal.
20.7 - 24.3 gal.

Front Head Room

Front Head Room
37.2 in.
37.7 - 42.1 in.

Front Leg Room

Front Leg Room
41.4 in.
41.4 - 41.7 in.

Front Shoulder Room

Front Shoulder Room
59.1 in.
57 - 59.7 in.

Second Head Room

Second Head Room
38.1 in.
36.7 - 39.2 in.

Second Leg Room

Second Leg Room
38.7 in.
33.4 - 43 in.

Second Shoulder Room

Second Shoulder Room
57.8 in.
49.5 - 59.1 in.

Wheelbase

Wheelbase
117.9 in.
115.9 - 124.6 in.

Length, Overall

Length, Overall
202.6 in.
198.9 - 208.2 in.

Width, Max w/o mirrors

Width, Max w/o mirrors
76.7 in.
75.3 - 75.4 in.

Height, Overall

Height, Overall
57.4 in.
56 - 59 in.

Track Width, Front

Track Width, Front
64.3 in.
63 - 64.7 in.

Track Width, Rear

Track Width, Rear
63.9 in.
63.2 - 64.7 in.

Trunk Volume

Trunk Volume
14.2 ft³.
7 - 18 ft³.

Seventh Gear Ratio (:1)

Seventh Gear Ratio (:1)
0.84
0.86

Eighth Gear Ratio (:1)

Eighth Gear Ratio (:1)
0.67
0.72

Model Group

Model Group
S8
S-Class

Vehicle Segment

Vehicle Segment
Luxury Sport
Luxury Sport

Vehicle Type

Vehicle Type
Sedan
Convertible, Coupe, Sedan

Engine Displacement Units

Engine Displacement Units
4.0
4.0

Engine Camshaft

Engine Camshaft
DOHC
DOHC

Engine Block Type

Engine Block Type
aluminum
aluminum

Engine Cylinder Count

Engine Cylinder Count
8
8

Engine Valve Count

Engine Valve Count
4
4