Compare 2018 Audi A8 vs 2018 BMW 7-Series vs 2018 Mercedes-Benz S Class

2018 Audi A8
X
2018 BMW 7-Series
X
2018 Mercedes-Benz S Class
X
Select style
3.0 TFSI
Style MPG City MPG Hwy Invoice MSRP
A8 L 3.0 TFSI 19 29 $76,726 $82,500
A8 L 4.0 TFSI Sport 16 26 $85,560 $92,000
S8 plus 4.0 TFSI 14 24 $107,788 $115,900
Select style
740e xDrive iPerformance Plug-In Hybrid
Style MPG City MPG Hwy Invoice MSRP
7 Series 740e xDrive iPerformance Plug-In Hybrid N/A N/A $84,850 $90,700
7 Series 740i Sedan 21 29 $77,785 $83,100
7 Series 740i xDrive Sedan 20 29 $80,575 $86,100
7 Series 750i Sedan 17 25 $90,150 $96,400
7 Series 750i xDrive Sedan 16 25 $92,940 $99,400
7 Series ALPINA B7 xDrive Sedan 16 25 $129,585 $138,800
7 Series M760i xDrive Sedan 13 20 $146,230 $156,700
Select style
AMG S 63 4MATIC Convertible
Style MPG City MPG Hwy Invoice MSRP
S-Class AMG S 63 4MATIC Convertible 15 24 $166,935 $179,500
S-Class AMG S 63 4MATIC Coupe 17 27 $155,961 $167,700
S-Class AMG S 63 4MATIC Sedan 17 26 $137,175 $147,500
S-Class AMG S 65 Convertible 14 21 $233,337 $250,900
S-Class AMG S 65 Coupe 13 21 $222,177 $238,900
S-Class AMG S 65 Sedan 13 22 $213,435 $229,500
S-Class Maybach S 560 4MATIC Sedan 16 25 $156,798 $168,600
S-Class Maybach S 650 Sedan 13 21 $184,791 $198,700
S-Class S 450 4MATIC Sedan 18 28 $86,397 $92,900
S-Class S 450 Sedan 19 28 $83,607 $89,900
S-Class S 560 4MATIC Coupe 17 27 $115,785 $124,500
S-Class S 560 4MATIC Sedan 17 27 $95,697 $102,900
S-Class S 560 Convertible 17 26 $123,969 $133,300
S-Class S 560 Sedan 17 27 $92,907 $99,900
Pricing
Invoice Price
$76,726
$84,850
$166,935
Manufacturer Suggested Retail Price
$82,500
$90,700
$179,500
Monthly Payment Estimate
$1375 / month
$1512 / month
$2992 / month
The Car Connection's Take
TCC Rating
7.8
8.2
8.4
TCC’s Bottom Line
The 2018 Audi S8 is a speed machine that's the ultimate sleeper. Spot one and stare—it'll likely be gone just as quickly. The 2018 BMW 7-Series is a plush ride with plenty of powertrain options and customizable features that places it among the full-size greats. The 2018 Mercedes-Benz continues to push the envelope for comfort. safety, and autonomous driving aids, while improving upon its effortless power and dignified road manners.
TCC Likes
TCC Dislikes
Fuel Economy
City
19 mpg 0 mpg 15 mpg
Highway
29 mpg 0 mpg 24 mpg
Vehicle
EPA Classification
Large Cars Large Cars Compact Cars
Interior Dimensions
Front Leg Room (in)
41.4 41.4 -
Second Head Room (in)
39.1 38.9 37.6
Second Shoulder Room (in)
57.8 57.7 54.1
Front Head Room (in)
37.2 39.9 37.7
Passenger Volume (ft³)
121.9 - -
Front Shoulder Room (in)
59.1 59.2 60.6
Second Leg Room (in)
42.9 44.4 -
Passenger Capacity
5 5 4
Front Hip Room (in)
- - 60.6
Exterior Dimensions
Width, Max w/o mirrors (in)
76.7 74.9 75.3
Track Width, Front (in)
64.7 63.4 64.7
Length, Overall (in)
207.4 206.6 198.9
Height, Overall (in)
57.9 58.2 56
Track Width, Rear (in)
64.4 64.6 64.7
Wheelbase (in)
122.9 126.4 115.9
Cargo Area Dimensions
Trunk Volume (ft³)
14.2 14.8 8.8
Brakes
Rear Brake Rotor Diam x Thickness (in)
14 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)
15 14.7 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
Fuel Tank
Fuel Tank Capacity, Approx (gal)
21.7 12.1 21.1
Steering
Turning Diameter - Curb to Curb (ft)
41.7 42.4 -
Steering Type
Rack-Pinion Rack-Pinion Rack-Pinion
Tires
Rear Tire Size
P255/45HR19 P245/50VR18 P285/35YR20
Rear Tire Order Code
NA NA R01
Front Tire Size
P255/45HR19 P245/50VR18 P255/40YR20
Spare Tire Size
Compact NA NA
Front Tire Order Code
NA NA R01
Spare Tire Order Code
NA NA NA
Weight Information
Base Curb Weight (lbs)
4464 4740 4817
Wheels
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
Rear Wheel Material
Aluminum Aluminum Aluminum
Rear Wheel Size (in)
19 X 9 18 X 8 20 X 9.5
Electrical
Maximum Alternator Capacity (amps)
190 250 150
Cold Cranking Amps @ 0° F (Primary)
- - 520
Engine
Engine Type
Intercooled Supercharger Premium Unleaded V-6 Intercooled Turbo Gas/Electric I-4 Twin Turbo Premium Unleaded V-8
Fuel System
Gasoline Direct Injection Gasoline Direct Injection Gasoline Direct Injection
SAE Net Torque @ RPM
325 @ 2900 369 664 @ 2750
Engine Order Code
NA NA NA
Displacement
3.0 L/183 2.0 L/122 4.0 L/243
SAE Net Horsepower @ RPM
333 @ 5500 322 @ 5000 603 @ 5500
Mileage
EPA Fuel Economy Est - City (MPG)
19 - 15
Fuel Economy Est-Combined (MPG)
22 27 18
EPA Fuel Economy Est - Hwy (MPG)
29 - 24
Battery Range (mi)
- 14 -
EPA MPG Equivalent - Combined
- 64 -
Transmission
Reverse Ratio (:1)
3.32 3.32 4.93
Second Gear Ratio (:1)
3.14 3.14 3.33
Trans Order Code
NA 2TE 421
Seventh Gear Ratio (:1)
0.84 0.84 0.86
Fourth Gear Ratio (:1)
1.67 1.67 1.66
Trans Description Cont.
Automatic w/OD Automatic w/OD Automatic w/OD
Sixth Gear Ratio (:1)
1.00 1.00 1.00
First Gear Ratio (:1)
4.71 4.71 5.50
Final Drive Axle Ratio (:1)
3.20 3.23 2.47
Third Gear Ratio (:1)
2.11 2.11 2.31
Trans Type
8 8 9
Eighth Gear Ratio (:1)
0.67 0.67 0.72
Drivetrain
All Wheel Drive All Wheel Drive All Wheel Drive
Fifth Gear Ratio (:1)
1.28 1.28 1.21
Trans Description Cont. Again
NA NA NA
Summary
Body Style
quattro LWB Sedan Sedan 4MATIC Cabriolet
Vehicle Name
Audi A8 L BMW 7 Series Mercedes-Benz S-Class
Suspension
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
Suspension Type - Rear
Multi-Link Multi-Link Multi-Link
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
8.1 - 9.8

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