Compare 2021 Audi A8 vs 2021 BMW 7-Series vs 2020 Mercedes-Benz S Class

2021 Audi A8
X
2021 BMW 7-Series
X
2020 Mercedes-Benz S Class
X
Select style
L 55 TFSI quattro
Style MPG City MPG Hwy Invoice MSRP
A8 L 55 TFSI quattro 17 26 $81,312 $86,500
A8 L 60 TFSI e quattro N/A N/A $90,148 $95,900
A8 L 60 TFSI quattro 15 23 $92,968 $98,900
S8 4.0 TFSI 13 22 $123,048 $130,900
Select style
740i Sedan
Style MPG City MPG Hwy Invoice MSRP
7 Series 740i Sedan 22 29 $81,225 $86,800
7 Series 740i xDrive Sedan 20 27 $84,015 $89,800
7 Series 745e xDrive Plug-In Hybrid N/A N/A $89,685 $95,900
7 Series 750i xDrive Sedan 17 24 $96,290 $103,000
7 Series ALPINA B7 xDrive Sedan 17 24 $133,675 $143,200
7 Series M760i xDrive Sedan 13 20 $147,255 $157,800
Select style
AMG S 63 4MATIC+ Convertible
Style MPG City MPG Hwy Invoice MSRP
S-Class AMG S 63 4MATIC+ Convertible 15 24 $172,490 $183,500
S-Class AMG S 63 4MATIC+ Coupe 17 27 $161,116 $171,400
S-Class AMG S 63 4MATIC+ Sedan 17 26 $142,504 $151,600
S-Class AMG S 65 Sedan 13 22 $221,464 $235,600
S-Class Maybach S 560 4MATIC Sedan 16 25 $162,620 $173,000
S-Class Maybach S 650 Sedan 13 21 $190,397 $202,550
S-Class S 450 4MATIC Sedan 18 28 $91,415 $97,250
S-Class S 450 Sedan 19 28 $88,595 $94,250
S-Class S 560 4MATIC Coupe 17 26 $122,341 $130,150
S-Class S 560 4MATIC Sedan 17 27 $101,003 $107,450
S-Class S 560 Convertible 17 26 $130,284 $138,600
S-Class S 560 Sedan 17 27 $98,183 $104,450
S-Class S 560e Sedan N/A N/A $103,165 $109,750

Pricing

Invoice Price
$81,312
$81,225
$172,490

Manufacturer Suggested Retail Price
$86,500
$86,800
$183,500

Monthly Payment Estimate
$1442 / month
$1447 / month
$3058 / month

The Car Connection's Take

TCC Rating
7.2
7.6
7.8

TCC’s Bottom Line
A worthy flagship, the 2021 Audi A8 is thoroughly modern and eminently comfortable. The 2021 BMW 7-Series has brash looks but brims with sophistication from behind the wheel. The 2020 Mercedes-Benz S-Class is the benchmark for large luxury sedans.

TCC Likes

TCC Dislikes

Fuel Economy

City
17 mpg 22 mpg 15 mpg

Highway
26 mpg 29 mpg 24 mpg

Vehicle

EPA Classification
Large Cars Large Cars Subcompact Cars

Interior Dimensions

Second Leg Room (in)
44.3 44.4 -

Front Leg Room (in)
41.5 41.4 -

Passenger Capacity
5 5 4

Second Head Room (in)
38.5 38.9 37.6

Second Shoulder Room (in)
57.6 57.7 49.5

Front Head Room (in)
38.3 39.9 37.7

Front Shoulder Room (in)
59.1 59.2 57

Second Hip Room (in)
- - 53.1

Front Hip Room (in)
- - 60.6

Exterior Dimensions

Height, Overall (in)
58.6 58.2 56

Track Width, Rear (in)
64.3 64.6 64.7

Wheelbase (in)
123.2 126.4 115.9

Width, Max w/o mirrors (in)
76.6 74.9 75.3

Track Width, Front (in)
64.7 63.4 64.7

Length, Overall (in)
208.7 207.4 198.9

Min Ground Clearance (in)
- - 4.5

Cargo Area Dimensions

Trunk Volume (ft³)
12.5 18.2 7

Brakes

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)
13.8 14.5 14.2

Brake Type
4-Wheel Disc 4-Wheel Disc 4-Wheel Disc

Rear Drum Diam x Width (in)
NA NA NA

Disc - Front (Yes or )
Yes Yes Yes

Front Brake Rotor Diam x Thickness (in)
14.8 14.7 15.4

Fuel Tank

Fuel Tank Capacity, Approx (gal)
21.7 20.6 24.3

Steering

Steering Type
Rack-Pinion Rack-Pinion Rack-Pinion

Turning Diameter - Curb to Curb (ft)
42.2 42 -

Tires

Spare Tire Size
Compact NA NA

Front Tire Order Code
NA NA STDTR

Spare Tire Order Code
NA NA NA

Rear Tire Size
P255/45HR19 P245/50VR18 P285/35YR20

Rear Tire Order Code
NA NA STDTR

Front Tire Size
P255/45HR19 P245/50VR18 P255/40YR20

Weight Information

Base Curb Weight (lbs)
4773 4244 4817

Wheels

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 NA NA

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

Spare Wheel Size (in)
Compact NA NA

Engine

Engine Type
Intercooled Turbo Gas/Electric V-6 Intercooled Turbo Premium Unleaded I-6 Twin Turbo Premium Unleaded V-8

Fuel System
Gasoline Direct Injection Gasoline Direct Injection Gasoline Direct Injection

SAE Net Torque @ RPM
369 @ 1370 330 @ 1500 664 @ 2750

Engine Order Code
NA NA NA

Displacement
3.0 L/183 3.0 L/183 4.0 L/243

SAE Net Horsepower @ RPM
335 @ 5000 335 @ 5500 603 @ 5500

Mileage

EPA Fuel Economy Est - City (MPG)
17 22 15

Fuel Economy Est-Combined (MPG)
21 25 18

EPA Fuel Economy Est - Hwy (MPG)
26 29 24

Transmission

Second Gear Ratio (:1)
3.14 3.36 3.33

Trans Order Code
DA 2TB 421

Eighth Gear Ratio (:1)
0.67 0.64 0.72

Fourth Gear Ratio (:1)
1.67 1.72 1.66

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

Drivetrain
All Wheel Drive Rear Wheel Drive All Wheel Drive

Sixth Gear Ratio (:1)
1.00 1.00 1.00

First Gear Ratio (:1)
4.71 5.25 5.50

Seventh Gear Ratio (:1)
0.84 0.82 0.86

Final Drive Axle Ratio (:1)
3.08 3.08 2.47

Third Gear Ratio (:1)
2.11 2.17 2.31

Trans Type
8 8 9

Fifth Gear Ratio (:1)
1.28 1.32 1.21

Trans Description Cont. Again
NA NA NA

Reverse Ratio (:1)
3.32 3.71 4.93

Summary

Vehicle Name
Audi A8 BMW 7 Series Mercedes-Benz S-Class

Body Style
quattro LWB Sedan Sedan 4MATIC+ Cabriolet

Suspension

Suspension Type - Rear
Multi-Link Multi-Link Multi-Link

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

Suspension Type - Front
Multi-Link Double Wishbone Multi-Link

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

Emissions

Tons/yr of CO2 Emissions @ 15K mi/year
8.5 7.2 10.0

Electrical

Maximum Alternator Capacity (amps)
- 180 150

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

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