The Comparative Analysis :
Citroen C6 HDi 170 Biturbo FAP (06 - 09) vs. Audi RS6 (08 - 10)
€ 41,400

€ 108,400

€ 41,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 108,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ a little. The Citroen C6 HDi 170 Biturbo FAP is 0.8 inches shorter, 1.1 inches narrower and 0.3 inches taller than the Audi RS6.
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
57.6
73.2
82.1
57.3
74.4
79.9
73.2 in
Width
74.4 in
82.1 in
Width Incl. Mirrors
79.9 in
57.6 in
Height
57.3 in
114.2
193.2
112
194
193.2 in
Length
194 in
114.2 in
Wheelbase
112 in
Vehicle Weight
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
4178 lb
Curb Weight
4542 lb
5027 lb
Gross Vehicle
Weight
Weight
5655 lb

Weight Difference:
364 lb
8.01 %

General
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
T
Generation
C6 (4F)
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Mid-Grade Unleaded

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

6-speed manual transmission
Transmission
6-speed automatic transmission
Engine
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
V10 gasoline engine with two turbochargers (biturbo)
Engine Code
BUH
4
Valves
4
4
Cylinders
10
2.2 L / 108 cu in
Displacement
5 L / 245 cu in
168 hp
at 4000 rpm
Power
572 hp
at 6250 rpm
Citroen C6 HDi 170 Biturbo FAP
168 hp
572 hp
Audi RS6
273 lb‑ft
at 1500 rpm
Max. Torque
479 lb‑ft
at 1500 rpm
Citroen C6 HDi 170 Biturbo FAP
273 lb‑ft
479 lb‑ft
Audi RS6
Performance
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
135 mph
Maximum Speed
155 mph
10.3 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
469 ft
0.000 sec

Citroen C6 HDi 170 Biturbo FAP
62 mph
62
mph
mph
207 ft
0.000 sec

Audi RS6
▶ REPLAY
24.87 lb/hp
Weight-to-Power Ratio
7.94 lb/hp
Citroen C6 HDi 170 Biturbo FAP
24.87 lb/hp
7.94 lb/hp
Audi RS6
Fuel Economy / Emissions
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
Fuel Economy
36 mpg
combined
17 mpg
Citroen C6 HDi 170 Biturbo FAP
36 mpg
17 mpg
Audi RS6
27 mpg
city
12 mpg
44 mpg
highway
No data
19 gal
Fuel Tank Capacity
21.1 gal
678 mi
Range
358 mi
Citroen C6 HDi 170 Biturbo FAP
678 mi
358 mi
Audi RS6
Environmental Impact
135.8 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).
263.3 kWh
Citroen C6 HDi 170 Biturbo FAP
135.8 kWh
263.3 kWh
Audi RS6
Euro 4
Emission Standard
Euro 4 III
282 g/mi (NEFZ)
CO2 Emissions
533 g/mi (NEFZ)
Practical Convenience
Citroen C6 HDi 170 Biturbo FAP
Audi RS6
4
Doors
4
5
No. of Seats
5
849 lb
Maximum Payload
1113 lb
11.9 cu ft
Trunk Volume
15.5 cu ft









No data
Cargo Volume (Seats Down)
No data