The Comparative Analysis :
Jaguar XJ LWB 3.0 V6 Diesel S Automatic (12 - 15) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)
€ 89,500

€ 91,100

€ 89,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ considerably. The Jaguar XJ LWB 3.0 V6 Diesel S is 6.8 inches longer, 1.1 inches wider and an inch lower than the Mercedes S 420 CDI.
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
57
74.8
82.9
58
73.7
83.5
74.8 in
Width
73.7 in
82.9 in
Width Incl. Mirrors
83.5 in
57 in
Height
58 in
124.3
206.8
119.5
200
206.8 in
Length
200 in
124.3 in
Wheelbase
119.5 in
Vehicle Weight
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
4023 lb
Curb Weight
4608 lb
5214 lb
Gross Vehicle
Weight
Weight
5820 lb

Weight Difference:
584 lb
12.67 %

General
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
X351
Generation
W221
Sedan
Car Body Style
Sedan
Diesel
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
7-speed automatic transmission
Engine
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
V6 diesel engine with two turbochargers (biturbo)
Engine Type
V8 diesel engine with turbocharger
Engine Series
Mercedes-Benz OM 629
Engine Code
OM 629.911

4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4 L / 196 cu in
271 hp
at 4000 rpm
Power
316 hp
at 3600 rpm
Jaguar XJ LWB 3.0 V6 Diesel S
271 hp
316 hp
Mercedes S 420 CDI
443 lb‑ft
at 2000 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
Jaguar XJ LWB 3.0 V6 Diesel S
443 lb‑ft
538 lb‑ft
Mercedes S 420 CDI
Performance
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
155 mph
Maximum Speed
155 mph
6.4 sec
Acceleration 0 to 62 mph
6 sec
62 mph
62
mph
mph
292 ft
0.000 sec

Jaguar XJ LWB 3.0 V6 Diesel S
62 mph
62
mph
mph
272 ft
0.000 sec

Mercedes S 420 CDI
▶ REPLAY
14.85 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
Jaguar XJ LWB 3.0 V6 Diesel S
14.85 lb/hp
14.58 lb/hp
Mercedes S 420 CDI
Fuel Economy / Emissions
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
Fuel Economy
37 mpg
combined
25 mpg
Jaguar XJ LWB 3.0 V6 Diesel S
37 mpg
25 mpg
Mercedes S 420 CDI
31 mpg
city
18 mpg
42 mpg
highway
33 mpg
21.7 gal
Fuel Tank Capacity
23.8 gal
809 mi
Range
595 mi
Jaguar XJ LWB 3.0 V6 Diesel S
809 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
129.6 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).
193.4 kWh
Jaguar XJ LWB 3.0 V6 Diesel S
129.6 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 5
Emission Standard
Euro 4 III
269 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)
Practical Convenience
Jaguar XJ LWB 3.0 V6 Diesel S
Mercedes S 420 CDI
4
Doors
4
5
No. of Seats
5
1190 lb
Maximum Payload
1213 lb
14.7 cu ft
Trunk Volume
15.9 cu ft











No data
Cargo Volume (Seats Down)
No data