The Comparative Analysis :
Mercedes SLK 280 7G-TRONIC (08 - 11) vs. Alfa Romeo Spider 2.4 JTDM 20V (08 - 10)
€ 44,900

€ 38,400

€ 44,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 38,400
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes SLK 280 is considerably smaller in every dimension. It's 11.3 inches shorter, 1.7 inches narrower and 0.9 inches lower than the Alfa Romeo Spider 2.4 JTDM 20V.
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
51
70.4
78.9
51.9
72
80.1
70.4 in
Width
72 in
78.9 in
Width Incl. Mirrors
80.1 in
51 in
Height
51.9 in
95.7
161.7
99.5
173
161.7 in
Length
173 in
95.7 in
Wheelbase
99.5 in
Vehicle Weight
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
3219 lb
Curb Weight
3770 lb
3869 lb
Gross Vehicle
Weight
Weight
4376 lb

Weight Difference:
551 lb
14.62 %

General
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
R171
Generation
Typ 939
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Front-wheel drive

7-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
V6 gasoline engine (naturally aspirated engine)
Engine Type
Straight-five diesel engine with turbocharger
Mercedes-Benz M 272
Engine Series
M 272.942
Engine Code
939 A3.000

4
Valves
4
6
Cylinders
5
3 L / 147 cu in
Displacement
2.4 L / 117 cu in
228 hp
at 6000 rpm
Power
206 hp
at 4000 rpm
Mercedes SLK 280
228 hp
206 hp
Alfa Romeo Spider 2.4 JTDM 20V
221 lb‑ft
at 2500 rpm
Max. Torque
295 lb‑ft
at 1500 rpm
Mercedes SLK 280
221 lb‑ft
295 lb‑ft
Alfa Romeo Spider 2.4 JTDM 20V
Performance
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
155 mph
Maximum Speed
144 mph
6.2 sec
Acceleration 0 to 62 mph
8.1 sec
62 mph
62
mph
mph
282 ft
0.000 sec

Mercedes SLK 280
62 mph
62
mph
mph
371 ft
0.000 sec

Alfa Romeo Spider 2.4 JTDM 20V
▶ REPLAY
14.12 lb/hp
Weight-to-Power Ratio
18.3 lb/hp
Mercedes SLK 280
14.12 lb/hp
18.3 lb/hp
Alfa Romeo Spider 2.4 JTDM 20V
Fuel Economy / Emissions
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
Fuel Economy
26 mpg
combined
35 mpg
Mercedes SLK 280
26 mpg
35 mpg
Alfa Romeo Spider 2.4 JTDM 20V
18 mpg
city
26 mpg
35 mpg
highway
No data
18.5 gal
Fuel Tank Capacity
18.5 gal
478 mi
Range
639 mi
Mercedes SLK 280
478 mi
639 mi
Alfa Romeo Spider 2.4 JTDM 20V
Environmental Impact
172.4 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).
139.9 kWh
Mercedes SLK 280
172.4 kWh
139.9 kWh
Alfa Romeo Spider 2.4 JTDM 20V
Euro 4 / Euro 5
Emission Standard
Euro 4
348 g/mi (NEFZ)
CO2 Emissions
288 g/mi (NEFZ)
Practical Convenience
Mercedes SLK 280
Alfa Romeo Spider 2.4 JTDM 20V
2
Doors
2
2
No. of Seats
2
650 lb
Maximum Payload
606 lb
8.5 cu ft
Trunk Volume
7.2 cu ft






No data
Cargo Volume (Seats Down)
No data