The Comparative Analysis :
Mercedes SLC 250 d 9G-TRONIC (16 - 17) vs. Alfa Romeo Spider 3.2 JTS V6 24V Q4 (06 - 10)
€ 43,900

€ 43,600

€ 43,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 43,600
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes SLC 250 d is considerably smaller in every dimension. It's 10.2 inches shorter, 0.8 inches narrower and 0.7 inches lower than the Alfa Romeo Spider 3.2 JTS V6 24V.
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
51.2
71.3
79
51.9
72
80.1
71.3 in
Width
72 in
79 in
Width Incl. Mirrors
80.1 in
51.2 in
Height
51.9 in
95.7
162.7
99.5
173
162.7 in
Length
173 in
95.7 in
Wheelbase
99.5 in
Vehicle Weight
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
3538 lb
Curb Weight
3836 lb
4200 lb
Gross Vehicle
Weight
Weight
4442 lb

Weight Difference:
298 lb
7.77 %

General
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
R172
Generation
Typ 939
Roadster
Car Body Style
Roadster
Diesel
Fuel Type
Mid-Grade Unleaded

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

9-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
V6 gasoline engine (naturally aspirated engine)
Mercedes-Benz OM 651
Engine Series
OM 651.980
Engine Code
939 A.000

4
Valves
4
4
Cylinders
6
2.1 L / 103 cu in
Displacement
3.2 L / 157 cu in
201 hp
at 3800 rpm
Power
256 hp
at 6300 rpm
Mercedes SLC 250 d
201 hp
256 hp
Alfa Romeo Spider 3.2 JTS V6 24V
369 lb‑ft
at 1600 rpm
Max. Torque
237 lb‑ft
at 4500 rpm
Mercedes SLC 250 d
369 lb‑ft
237 lb‑ft
Alfa Romeo Spider 3.2 JTS V6 24V
Performance
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
152 mph
Maximum Speed
152 mph
6.6 sec
Acceleration 0 to 62 mph
7 sec
62 mph
62
mph
mph
302 ft
0.000 sec

Mercedes SLC 250 d
62 mph
62
mph
mph
318 ft
0.000 sec

Alfa Romeo Spider 3.2 JTS V6 24V
▶ REPLAY
17.6 lb/hp
Weight-to-Power Ratio
14.98 lb/hp
Mercedes SLC 250 d
17.6 lb/hp
14.98 lb/hp
Alfa Romeo Spider 3.2 JTS V6 24V
Fuel Economy / Emissions
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
Fuel Economy
53 mpg
combined
20 mpg
Mercedes SLC 250 d
53 mpg
20 mpg
Alfa Romeo Spider 3.2 JTS V6 24V
45 mpg
city
14 mpg
60 mpg
highway
No data
15.9 gal
Fuel Tank Capacity
18.5 gal
848 mi
Range
378 mi
Mercedes SLC 250 d
848 mi
378 mi
Alfa Romeo Spider 3.2 JTS V6 24V
Environmental Impact
90.4 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).
217.9 kWh
Mercedes SLC 250 d
90.4 kWh
217.9 kWh
Alfa Romeo Spider 3.2 JTS V6 24V
Euro 6b (NEFZ)
Emission Standard
Euro 4
183 g/mi (NEFZ)
CO2 Emissions
438 g/mi (NEFZ)
Practical Convenience
Mercedes SLC 250 d
Alfa Romeo Spider 3.2 JTS V6 24V
2
Doors
2
2
No. of Seats
2
661 lb
Maximum Payload
606 lb
9.5 cu ft
Trunk Volume
7.2 cu ft






No data
Cargo Volume (Seats Down)
No data