The Comparative Analysis :
Audi S6 TDI tiptronic (19 - ..) vs. BMW M550i xDrive Steptronic Sport (19 - ..)
€ 76,500

€ 90,500

€ 76,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 90,500
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
Тhere is barely any difference in dimensions between the two vehicles. The Audi S6 TDI is just 0.3 inches shorter, 0.7 inches wider and 0.8 inches lower than the BMW M550i.
Audi S6 TDI
BMW M550i
56.9
74.3
83.1
57.8
73.5
83.7
74.3 in
Width
73.5 in
83.1 in
Width Incl. Mirrors
83.7 in
56.9 in
Height
57.8 in
115.3
195
117.1
195.4
195 in
Length
195.4 in
115.3 in
Wheelbase
117.1 in
Vehicle Weight
Audi S6 TDI
BMW M550i
4475 lb
Curb Weight
4288 lb
5710 lb
Gross Vehicle
Weight
Weight
5467 lb

Weight Difference:
187 lb
4.18 %

General
Audi S6 TDI
BMW M550i
C8 (4K)
Generation
G30
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Audi S6 TDI
BMW M550i
6-cylinder mild hybrid diesel engine with turbocharger and electric driven compressor
Engine Type
V8 gasoline engine with two turbochargers (biturbo)
Engine Series
BMW N63
Engine Code
N63-B44
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.4 L / 215 cu in
344 hp
at 3850 rpm
Power
523 hp
at 5500 rpm
Audi S6 TDI
344 hp
523 hp
BMW M550i
516 lb‑ft
at 2500 rpm
Max. Torque
553 lb‑ft
at 1800 rpm
Audi S6 TDI
516 lb‑ft
553 lb‑ft
BMW M550i
Performance
Audi S6 TDI
BMW M550i
155 mph
Maximum Speed
155 mph
5 sec
Acceleration 0 to 62 mph
3.8 sec
62 mph
62
mph
mph
226 ft
0.000 sec

Audi S6 TDI
62 mph
62
mph
mph
174 ft
0.000 sec

BMW M550i
▶ REPLAY
13.01 lb/hp
Weight-to-Power Ratio
8.2 lb/hp
Audi S6 TDI
13.01 lb/hp
8.2 lb/hp
BMW M550i
Fuel Economy / Emissions
Audi S6 TDI
BMW M550i
Fuel Economy
38 mpg
combined
24 mpg
Audi S6 TDI
38 mpg
24 mpg
BMW M550i
32 mpg
city
18 mpg
No data
highway
No data
19.3 gal
Fuel Tank Capacity
18 gal
731 mi
Range
431 mi
Audi S6 TDI
731 mi
431 mi
BMW M550i
Environmental Impact
127.6 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).
185.7 kWh
Audi S6 TDI
127.6 kWh
185.7 kWh
BMW M550i
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
327 g/mi (WLTP)
CO2 Emissions
385 g/mi (WLTP)
Practical Convenience
Audi S6 TDI
BMW M550i
4
Doors
4
5
No. of Seats
5
1235 lb
Maximum Payload
1179 lb
15 cu ft
Trunk Volume
15 cu ft












No data
Cargo Volume (Seats Down)
No data