Car comparison

Mercedes-Benz SLK (R171) SLK 350 V6vsPorsche Boxster (986) S 3.2

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Mercedes-Benz SLK (R171)

SLK 350 V6

272 hp3498 ccGasolineRWDManualNaturally aspiratedRoadster2004-2007
VS

Porsche Boxster (986)

S 3.2

260 hp3179 ccGasolineRWDAutomaticNaturally aspiratedRoadster2002-2004

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Mercedes-Benz SLK (R171) SLK 350 V6

  • Quickest 0-100 km/h
    5.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    272 hp
    203 kW
  • Highest torque
    350 Nm
    258 lb-ft
  • Best power-to-weight
    196 hp/t
    146 kW/t
    5.1 kg/hp
  • Lowest combined fuel consumption
    10.6 L/100 km
    22.2 mpg US
    26.6 mpg UK
  • Lowest city consumption
    15.5 L/100 km
    15.2 mpg US
    18.2 mpg UK
  • Lowest highway consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Best estimated range
    660 km
    410 mi
  • Best overall score
    52/100
  • Best performance score
    63/100
  • Best economy score
    78/100

Specification comparison

Specification comparison
ModelMercedes-BenzSLK (R171)SLK 350 V6PorscheBoxster (986)S 3.2
Power
272hp203kW
260hp194kW
Torque
350Nm258lb-ft
310Nm229lb-ft
Curb weight
1,390kg3,064lb
1,360kg2,998lb
Gross weight
1,780kg3,924lb
1,670kg3,682lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
258 km/h
160 mph
To 99% top speed
70.5s99% target: 257 km/h / 160 mph
Calculated
79.6s99% target: 255 km/h / 159 mph
Calculated
0-100 km/h
5.6s
6.4s
0-200 km/h
19.4s
Calculated
22.4s
Calculated
0-60 mph
5.3s
Calculated
6.1s
Calculated
Fuel consumption
10.6L/100 km22.2mpg US26.6mpg UK
11.1L/100 km21.2mpg US25.4mpg UK
Fuel consumption city
15.5L/100 km15.2mpg US18.2mpg UK
16.4L/100 km14.3mpg US17.2mpg UK
Fuel consumption highway
7.8L/100 km30.2mpg US36.2mpg UK
8L/100 km29.4mpg US35.3mpg UK
Quarter mile
13.7s
Calculated
14.4s
Calculated
Power-to-weight
196hp/t146kW/t89hp/1000 lb
Calculated
191hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
252Nm/t168lb-ft/ton
Calculated
228Nm/t153lb-ft/ton
Calculated
Estimated range
660km410mi
Calculated
577km358mi
Calculated
Displacement
3,498cc213cu in
3,179cc194cu in
Length
4,089mm161in
4,320mm170in
Width
1,788mm70in
1,780mm70in
Height
1,298mm51in
1,290mm51in
Wheelbase
2,430mm96in
2,415mm95in
Front track
1,526mm60in
1,455mm57in
Rear track
1,549mm61in
1,514mm60in
Ground clearance-
121mm5in
Trunk volume
208L
260L
Doors
2
2
Seats
2
2
Fuel tank
70L
64L

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Mercedes-Benz SLK (R171) SLK 350 V6Porsche Boxster (986) S 3.2PowerTorque
  • Mercedes-Benz SLK (R171) SLK 350 V6: Power / Torque
  • Porsche Boxster (986) S 3.2: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzSLK (R171)SLK 350 V66,000 rpm2,400-5,000 rpm6,250 rpm
PorscheBoxster (986)S 3.26,200 rpm4,600 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzSLK (R171)SLK 350 V6PorscheBoxster (986)S 3.2
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
6.1 s
0-100 km/h
0-62 mph
5.6 s
6.4 s
0-200 km/h
0-124 mph
19.4 s
22.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
258 km/h
160 mph
Drag race simulation
60 ft
18 m
2.3 s
2.5 s
330 ft
101 m
6.0 s
6.4 s
1/8 mile
201 m
9.0 s
9.5 s
1000 ft
305 m
11.6 s
12.2 s
1/4 mile
402 m
13.7 s
14.4 s
Trap speed
1/4 mile
402 m
171 km/h
106 mph
164 km/h
102 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
272 hp
203 kW
PorscheBoxster (986)S 3.2
260 hp
194 kW

Mercedes-Benz SLK (R171) SLK 350 V6 has 12 hp more than Porsche Boxster (986) S 3.2.

The biggest power difference is between Porsche Boxster (986) S 3.2 and Mercedes-Benz SLK (R171) SLK 350 V6: 12 hp (9 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
350 Nm
258 lb-ft
PorscheBoxster (986)S 3.2
310 Nm
229 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
1,390 kg
3,064 lb
PorscheBoxster (986)S 3.2
1,360 kg
2,998 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
PorscheBoxster (986)S 3.2
258 km/h
160 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V65.6 s
PorscheBoxster (986)S 3.26.4 s

The biggest 0-100 km/h difference is between Mercedes-Benz SLK (R171) SLK 350 V6 and Porsche Boxster (986) S 3.2: 0.8 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
PorscheBoxster (986)S 3.2
11.1 L/100 km
21.2 mpg US
25.4 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz SLK (R171) SLK 350 V6 and Porsche Boxster (986) S 3.2: 0.5 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
196 hp/t
146 kW/t
5.1 kg/hp
PorscheBoxster (986)S 3.2
191 hp/t
143 kW/t
5.2 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
Mercedes-BenzSLK (R171)SLK 350 V6
660 km
410 mi
PorscheBoxster (986)S 3.2
577 km
358 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzSLK (R171)SLK 350 V6
272 hp
203 kW
5.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
PorscheBoxster (986)S 3.2
260 hp
194 kW
6.4 s
258 km/h
160 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
Mercedes-BenzSLK (R171)SLK 350 V6
Power
272 hp
203 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
208 L
7.3 cu ft
Length
4,089 mm
161.0 in
Height
1,298 mm
51.1 in
PorscheBoxster (986)S 3.2
Power
260 hp
194 kW
0-100 km/h6.4 s
Top speed
258 km/h
160 mph
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,320 mm
170.1 in
Height
1,290 mm
50.8 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
Mercedes-BenzSLK (R171)SLK 350 V6
Power
272 hp
203 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
PorscheBoxster (986)S 3.2
Power
260 hp
194 kW
0-100 km/h6.4 s
Top speed
258 km/h
160 mph
11.1 L/100 km
21.2 mpg US
25.4 mpg UK

Mercedes-Benz SLK (R171) SLK 350 V6 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
Mercedes-BenzSLK (R171)SLK 350 V6
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
5.6 s
PorscheBoxster (986)S 3.2
11.1 L/100 km
21.2 mpg US
25.4 mpg UK
6.4 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Mercedes-BenzSLK (R171)SLK 350 V6
196 hp/t
146 kW/t
5.1 kg/hp
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
PorscheBoxster (986)S 3.2
191 hp/t
143 kW/t
5.2 kg/hp
11.1 L/100 km
21.2 mpg US
25.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzSLK (R171)SLK 350 V6PorscheBoxster (986)S 3.2
Power
272 hp
203 kW
260 hp
194 kW
Torque
350 Nm
258 lb-ft
310 Nm
229 lb-ft
Acceleration
5.6 s
6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
258 km/h
160 mph
Lightness
1,390 kg
3,064 lb
1,360 kg
2,998 lb
Fuel consumption
10.6 L/100 km
22.2 mpg US
26.6 mpg UK
11.1 L/100 km
21.2 mpg US
25.4 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
208 L
7.3 cu ft
Length
4,089 mm
161.0 in
Height
1,298 mm
51.1 in
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,320 mm
170.1 in
Height
1,290 mm
50.8 in
Range score
660 km
410 mi
577 km
358 mi
Trunk score
208 L
7.3 cu ft
260 L
9.2 cu ft
Power-to-weight score
196 hp/t
146 kW/t
5.1 kg/hp
191 hp/t
143 kW/t
5.2 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleMercedes-Benz SLK (R171) SLK 350 V6Porsche Boxster (986) S 3.2
Consumption10.6 L/100 km22.2 mpg US26.6 mpg UK11.1 L/100 km21.2 mpg US25.4 mpg UK
Cost / 100 km18.55 LC100 km19.43 LC100 km
Cost / 100 mi29.85 LC100 mi31.26 LC100 mi
Annual fuel used1,590 L420 US gal350 UK gal1,665 L440 US gal366 UK gal
Annual fuel cost2,783 LC/year2,914 LC/year

Head-to-head comparisons

Mercedes-Benz SLK (R171) SLK 350 V6

  • Has 12 hp more
  • Has 40 Nm more
  • Is 0.8 s quicker from 0-100 km/h
  • Has 2 km/h (1 mph) higher top speed
  • Uses 0.5 L/100 km less fuel
  • Has 5 hp/t better power-to-weight
  • Has 84 km (52 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Heaviest
  • Smallest trunk

Porsche Boxster (986) S 3.2

  • Is 30 kg lighter
  • Has 52 L more trunk volume

Pros

  • Lightest
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

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Model
Generation
Engine or modification
Mercedes-Benz SLK (R171) SLK 350 V6
Porsche Boxster (986) S 3.2
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