The Comparative Analysis :
Audi Q8 55 TFSI quattro tiptronic (19 - ..) vs. Audi Q7 4.2 TDI quattro tiptronic (09 - 10)
€ 77,300

€ 72,700

€ 77,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 72,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The Q8 55 TFSI is 4.1 inches shorter, 0.5 inches wider and 1.3 inches lower than the Q7 4.2 TDI.
Q8 55 TFSI
Q7 4.2 TDI
67.1
78.5
86.2
68.4
78.1
85.7
78.5 in
Width
78.1 in
86.2 in
Width Incl. Mirrors
85.7 in
67.1 in
Height
68.4 in
117.9
196.3
118.2
200.4
196.3 in
Length
200.4 in
117.9 in
Wheelbase
118.2 in
Vehicle Weight
Q8 55 TFSI
Q7 4.2 TDI
4784 lb
Curb Weight
5501 lb
6217 lb
Gross Vehicle
Weight
Weight
6867 lb

Weight Difference:
717 lb
13.04 %

General
Q8 55 TFSI
Q7 4.2 TDI
4M
Generation
4L
Sport Utility Vehicle
Car Body Style
Sport Utility Vehicle
Mid-Grade Unleaded
Fuel Type
Diesel

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

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
Q8 55 TFSI
Q7 4.2 TDI
6-cylinder mild hybrid gasoline engine with turbocharger
Engine Type
V8 diesel engine with turbocharger
DCBD
Engine Code
CCFA, CCFC
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.1 L / 201 cu in
335 hp
at 5000 rpm
Power
335 hp
at 4000 rpm
Q8 55 TFSI
335 hp
335 hp
Q7 4.2 TDI
369 lb‑ft
at 1370 rpm
Max. Torque
561 lb‑ft
at 1750 rpm
Q8 55 TFSI
369 lb‑ft
561 lb‑ft
Q7 4.2 TDI
Performance
Q8 55 TFSI
Q7 4.2 TDI
155 mph
Maximum Speed
149 mph
5.9 sec
Acceleration 0 to 62 mph
6.4 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Q8 55 TFSI
62 mph
62
mph
mph
292 ft
0.000 sec

Q7 4.2 TDI
▶ REPLAY
14.28 lb/hp
Weight-to-Power Ratio
16.42 lb/hp
Q8 55 TFSI
14.28 lb/hp
16.42 lb/hp
Q7 4.2 TDI
Fuel Economy / Emissions
Q8 55 TFSI
Q7 4.2 TDI
Fuel Economy
27 mpg
combined
24 mpg
Q8 55 TFSI
27 mpg
24 mpg
Q7 4.2 TDI
21 mpg
city
18 mpg
No data
highway
No data
22.5 gal
Fuel Tank Capacity
26.4 gal
600 mi
Range
628 mi
Q8 55 TFSI
600 mi
628 mi
Q7 4.2 TDI
Environmental Impact
166.7 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).
203.7 kWh
Q8 55 TFSI
166.7 kWh
203.7 kWh
Q7 4.2 TDI
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4 III
373 g/mi (WLTP)
CO2 Emissions
422 g/mi (NEFZ)
Practical Convenience
Q8 55 TFSI
Q7 4.2 TDI
5
Doors
5
5
No. of Seats
5
1433 lb
Maximum Payload
1367 lb
17.1 cu ft
Trunk Volume
21.9 cu ft













49.7 cu ft
Cargo Volume (Seats Down)
57.6 cu ft