The Comparative Analysis :
BMW 540i Steptronic (17 - ..) vs. Audi S6 (06 - 08)
€ 61,200

€ 82,300

€ 61,200
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 82,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 540i is a little bigger in every dimension. It's 0.8 inches longer, 0.5 inches wider and 0.8 inches taller than the Audi S6.
BMW 540i
Audi S6
58.2
73.5
83.7
57.4
73
79.9
73.5 in
Width
73 in
83.7 in
Width Incl. Mirrors
79.9 in
58.2 in
Height
57.4 in
117.1
194.3
111.9
193.5
194.3 in
Length
193.5 in
117.1 in
Wheelbase
111.9 in
Vehicle Weight
BMW 540i
Audi S6
3682 lb
Curb Weight
4376 lb
5004 lb
Gross Vehicle
Weight
Weight
5490 lb

Weight Difference:
694 lb
15.86 %

General
BMW 540i
Audi S6
G30
Generation
C6 (4F)
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW 540i
Audi S6
Straight-six gasoline engine with turbocharger
Engine Type
V10 gasoline engine (naturally aspirated engine)
BMW B58
Engine Series
B58-B30
Engine Code
BXA

4
Valves
4
6
Cylinders
10
3 L / 147 cu in
Displacement
5.2 L / 254 cu in
335 hp
at 5500 rpm
Power
429 hp
at 6800 rpm
BMW 540i
335 hp
429 hp
Audi S6
332 lb‑ft
at 1380 rpm
Max. Torque
398 lb‑ft
at 3000 rpm
BMW 540i
332 lb‑ft
398 lb‑ft
Audi S6
Performance
BMW 540i
Audi S6
155 mph
Maximum Speed
155 mph
5.1 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph
62
mph
mph
233 ft
0.000 sec

BMW 540i
62 mph
62
mph
mph
236 ft
0.000 sec

Audi S6
▶ REPLAY
10.99 lb/hp
Weight-to-Power Ratio
10.2 lb/hp
BMW 540i
10.99 lb/hp
10.2 lb/hp
Audi S6
Fuel Economy / Emissions
BMW 540i
Audi S6
Fuel Economy
36 mpg
combined
18 mpg
BMW 540i
36 mpg
18 mpg
Audi S6
26 mpg
city
12 mpg
No data
highway
No data
18 gal
Fuel Tank Capacity
21.1 gal
650 mi
Range
371 mi
BMW 540i
650 mi
371 mi
Audi S6
Environmental Impact
123.1 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).
253.8 kWh
BMW 540i
123.1 kWh
253.8 kWh
Audi S6
Euro 6c (NEFZ)
Emission Standard
Euro 4
240 g/mi (NEFZ)
CO2 Emissions
513 g/mi (NEFZ)
Practical Convenience
BMW 540i
Audi S6
4
Doors
4
5
No. of Seats
5
1323 lb
Maximum Payload
1113 lb
15 cu ft
Trunk Volume
15.5 cu ft











No data
Cargo Volume (Seats Down)
No data