The Comparative Analysis :
BMW M550i xDrive Steptronic Sport (19 - ..) vs. Audi S6 (08 - 10)
€ 90,500

€ 86,800

€ 90,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 86,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW M550i is a little bigger in every dimension. It's 0.9 inches longer, 0.2 inches wider and an inch taller than the Audi S6.
BMW M550i
Audi S6
57.8
73.5
83.7
56.8
73.4
79.9
73.5 in
Width
73.4 in
83.7 in
Width Incl. Mirrors
79.9 in
57.8 in
Height
56.8 in
117.1
195.4
112.1
194.4
195.4 in
Length
194.4 in
117.1 in
Wheelbase
112.1 in
Vehicle Weight
BMW M550i
Audi S6
4288 lb
Curb Weight
4376 lb
5467 lb
Gross Vehicle
Weight
Weight
5490 lb

Weight Difference:
88 lb
2.01 %

General
BMW M550i
Audi S6
G30
Generation
C6 (4F)
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Premium Unleaded

Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW M550i
Audi S6
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
V10 gasoline engine (naturally aspirated engine)
BMW N63
Engine Series
N63-B44
Engine Code
BXA
4
Valves
4
8
Cylinders
10
4.4 L / 215 cu in
Displacement
5.2 L / 254 cu in
523 hp
at 5500 rpm
Power
429 hp
at 6800 rpm
BMW M550i
523 hp
429 hp
Audi S6
553 lb‑ft
at 1800 rpm
Max. Torque
398 lb‑ft
at 3000 rpm
BMW M550i
553 lb‑ft
398 lb‑ft
Audi S6
Performance
BMW M550i
Audi S6
155 mph
Maximum Speed
155 mph
3.8 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph
62
mph
mph
174 ft
0.000 sec

BMW M550i
62 mph
62
mph
mph
236 ft
0.000 sec

Audi S6
▶ REPLAY
8.2 lb/hp
Weight-to-Power Ratio
10.2 lb/hp
BMW M550i
8.2 lb/hp
10.2 lb/hp
Audi S6
Fuel Economy / Emissions
BMW M550i
Audi S6
Fuel Economy
24 mpg
combined
19 mpg
BMW M550i
24 mpg
19 mpg
Audi S6
18 mpg
city
13 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
21.1 gal
431 mi
Range
395 mi
BMW M550i
431 mi
395 mi
Audi S6
Environmental Impact
185.7 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
238.7 kWh
BMW M550i
185.7 kWh
238.7 kWh
Audi S6
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
385 g/mi (WLTP)
CO2 Emissions
481 g/mi (NEFZ)
Practical Convenience
BMW M550i
Audi S6
4
Doors
4
5
No. of Seats
5
1179 lb
Maximum Payload
1113 lb
15 cu ft
Trunk Volume
15.5 cu ft











No data
Cargo Volume (Seats Down)
No data