The Comparative Analysis :
Mercedes SLK 350 7G-TRONIC (04 - 08) vs. Mercedes SLK 300 9G-TRONIC (15 - 16)
€ 48,500

€ 46,100

€ 48,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The SLK 350 is a little smaller in every dimension. It's 1.8 inches shorter, 0.9 inches narrower and 0.1 inches lower than the SLK 300.
SLK 350
SLK 300
51.1
70.4
77.6
51.2
71.3
79
70.4 in
Width
71.3 in
77.6 in
Width Incl. Mirrors
79 in
51.1 in
Height
51.2 in
95.7
161
95.7
162.8
161 in
Length
162.8 in
95.7 in
Wheelbase
95.7 in
Vehicle Weight
SLK 350
SLK 300
3274 lb
Curb Weight
3318 lb
3924 lb
Gross Vehicle
Weight
Weight
4012 lb

Weight Difference:
44 lb
1.33 %

General
SLK 350
SLK 300
R171
Generation
R172
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
9-speed automatic transmission
Engine
SLK 350
SLK 300
V6 gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
Mercedes-Benz M 272
Engine Series
Mercedes-Benz M 274
M 272.963
Engine Code
M 274.920


4
Valves
4
6
Cylinders
4
3.5 L / 171 cu in
Displacement
2 L / 98 cu in
268 hp
at 6000 rpm
Power
242 hp
at 5500 rpm
SLK 350
268 hp
242 hp
SLK 300
258 lb‑ft
at 3500 rpm
Max. Torque
273 lb‑ft
at 1300 rpm
SLK 350
258 lb‑ft
273 lb‑ft
SLK 300
Performance
SLK 350
SLK 300
155 mph
Maximum Speed
151 mph
5.5 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
249 ft
0.000 sec

SLK 350
62 mph
62
mph
mph
302 ft
0.000 sec

SLK 300
▶ REPLAY
12.22 lb/hp
Weight-to-Power Ratio
13.71 lb/hp
SLK 350
12.22 lb/hp
13.71 lb/hp
SLK 300
Fuel Economy / Emissions
SLK 350
SLK 300
Fuel Economy
23 mpg
combined
38 mpg
SLK 350
23 mpg
38 mpg
SLK 300
17 mpg
city
30 mpg
30 mpg
highway
45 mpg
18.5 gal
Fuel Tank Capacity
15.9 gal
431 mi
Range
601 mi
SLK 350
431 mi
601 mi
SLK 300
Environmental Impact
191.4 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).
117.5 kWh
SLK 350
191.4 kWh
117.5 kWh
SLK 300
Euro 4
Emission Standard
Euro 6b (NEFZ)
389 g/mi (NEFZ)
CO2 Emissions
232 g/mi (NEFZ)
Practical Convenience
SLK 350
SLK 300
2
Doors
2
2
No. of Seats
2
650 lb
Maximum Payload
694 lb
8.5 cu ft
Trunk Volume
9.5 cu ft








No data
Cargo Volume (Seats Down)
No data