Car comparison

Porsche 968 Cabrio 3.0 16VvsBMW M3 Convertible (E30) 2.3

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

New comparison

Porsche 968 Cabrio

3.0 16V

240 hp2990 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible1991-1995
VS

BMW M3 Convertible (E30)

2.3

215 hp2302 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible1989-1991

Comparison overview

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

Best choices

Porsche 968 Cabrio 3.0 16V

  • Quickest 0-100 km/h
    6.5 s
  • Fastest top speed
    252 km/h
    157 mph
  • Most powerful
    240 hp
    179 kW
  • Highest torque
    305 Nm
    225 lb-ft
  • Best power-to-weight
    167 hp/t
    124 kW/t
    6.0 kg/hp
  • Best estimated range
    841 km
    523 mi
  • Best overall score
    49/100
  • Best performance score
    57/100

BMW M3 Convertible (E30) 2.3

  • Lightest
    1,360 kg
    2,998 lb
  • Lowest combined fuel consumption
    8.0 L/100 km
    29.4 mpg US
    35.3 mpg UK
  • Lowest city consumption
    12.5 L/100 km
    18.8 mpg US
    22.6 mpg UK
  • Lowest highway consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Largest trunk
    303 L
  • Best economy score
    85/100
  • Best practicality score
    45/100

Specification comparison

Specification comparison
ModelPorsche968 Cabrio3.0 16VBMWM3 Convertible (E30)2.3
Power
240hp179kW
215hp160kW
Torque
305Nm225lb-ft
230Nm170lb-ft
Curb weight
1,440kg3,175lb
1,360kg2,998lb
Gross weight
1,790kg3,946lb
1,720kg3,792lb
Top speed
252 km/h
157 mph
239 km/h
149 mph
To 99% top speed
86.9s99% target: 249 km/h / 155 mph
Calculated
92.7s99% target: 237 km/h / 147 mph
Calculated
0-100 km/h
6.5s
7.3s
0-200 km/h
24.7s
Calculated
30.7s
Calculated
0-60 mph
6.2s
Calculated
6.9s
Calculated
Fuel consumption
8.8L/100 km26.7mpg US32.1mpg UK
8L/100 km29.4mpg US35.3mpg UK
Fuel consumption city
14.8L/100 km15.9mpg US19.1mpg UK
12.5L/100 km18.8mpg US22.6mpg UK
Fuel consumption highway
7.1L/100 km33.1mpg US39.8mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Quarter mile
14.5s
Calculated
15.2s
Calculated
Power-to-weight
167hp/t124kW/t76hp/1000 lb
Calculated
158hp/t118kW/t72hp/1000 lb
Calculated
Torque-to-weight
212Nm/t142lb-ft/ton
Calculated
169Nm/t113lb-ft/ton
Calculated
Estimated range
841km523mi
Calculated
775km482mi
Calculated
Displacement
2,990cc182cu in
2,302cc140cu in
Length
4,320mm170in
4,345mm171in
Width
1,735mm68in
1,680mm66in
Height
1,275mm50in
1,370mm54in
Wheelbase
2,400mm94in
2,565mm101in
Front track
1,470mm58in
1,414mm56in
Rear track
1,450mm57in
1,435mm56in
Trunk volume
225L
303L
Max trunk volume
510L
-
Doors
2
2
Seats
2
4
Fuel tank
74L
62L

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.

Porsche 968 Cabrio 3.0 16VBMW M3 Convertible (E30) 2.3PowerTorque
  • Porsche 968 Cabrio 3.0 16V: Power / Torque
  • BMW M3 Convertible (E30) 2.3: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche968 Cabrio3.0 16V6,200 rpm4,100 rpm6,450 rpm
BMWM3 Convertible (E30)2.36,750 rpm4,600 rpm7,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche968 Cabrio3.0 16VBMWM3 Convertible (E30)2.3
Acceleration checkpoints
0-60 mph
0-97 km/h
6.2 s
6.9 s
0-100 km/h
0-62 mph
6.5 s
7.3 s
0-200 km/h
0-124 mph
24.7 s
30.7 s
Top speed
252 km/h
157 mph
239 km/h
149 mph
Drag race simulation
60 ft
18 m
2.4 s
2.5 s
330 ft
101 m
6.3 s
6.6 s
1/8 mile
201 m
9.5 s
10.0 s
1000 ft
305 m
12.3 s
12.8 s
1/4 mile
402 m
14.5 s
15.2 s
Trap speed
1/4 mile
402 m
160 km/h
99 mph
152 km/h
94 mph

Power comparison

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

Chart data table
VehicleValue
Porsche968 Cabrio3.0 16V
240 hp
179 kW
BMWM3 Convertible (E30)2.3
215 hp
160 kW

Porsche 968 Cabrio 3.0 16V has 25 hp more than BMW M3 Convertible (E30) 2.3.

The biggest power difference is between BMW M3 Convertible (E30) 2.3 and Porsche 968 Cabrio 3.0 16V: 25 hp (19 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche968 Cabrio3.0 16V
305 Nm
225 lb-ft
BMWM3 Convertible (E30)2.3
230 Nm
170 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche968 Cabrio3.0 16V
1,440 kg
3,175 lb
BMWM3 Convertible (E30)2.3
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
Porsche968 Cabrio3.0 16V
252 km/h
157 mph
BMWM3 Convertible (E30)2.3
239 km/h
149 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche968 Cabrio3.0 16V6.5 s
BMWM3 Convertible (E30)2.37.3 s

The biggest 0-100 km/h difference is between Porsche 968 Cabrio 3.0 16V and BMW M3 Convertible (E30) 2.3: 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
Porsche968 Cabrio3.0 16V
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
BMWM3 Convertible (E30)2.3
8.0 L/100 km
29.4 mpg US
35.3 mpg UK

The biggest fuel consumption difference is between BMW M3 Convertible (E30) 2.3 and Porsche 968 Cabrio 3.0 16V: 0.8 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
Porsche968 Cabrio3.0 16V
167 hp/t
124 kW/t
6.0 kg/hp
BMWM3 Convertible (E30)2.3
158 hp/t
118 kW/t
6.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche968 Cabrio3.0 16V
841 km
523 mi
BMWM3 Convertible (E30)2.3
775 km
482 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche968 Cabrio3.0 16V
240 hp
179 kW
6.5 s
252 km/h
157 mph
BMWM3 Convertible (E30)2.3
215 hp
160 kW
7.3 s
239 km/h
149 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
Porsche968 Cabrio3.0 16V
Power
240 hp
179 kW
0-100 km/h6.5 s
Top speed
252 km/h
157 mph
Doors/seats
2 doors
2 seats
Trunk
225 L
7.9 cu ft
Length
4,320 mm
170.1 in
Height
1,275 mm
50.2 in
BMWM3 Convertible (E30)2.3
Power
215 hp
160 kW
0-100 km/h7.3 s
Top speed
239 km/h
149 mph
Doors/seats
2 doors
4 seats
Trunk
303 L
10.7 cu ft
Length
4,345 mm
171.1 in
Height
1,370 mm
53.9 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
Porsche968 Cabrio3.0 16V
Power
240 hp
179 kW
0-100 km/h6.5 s
Top speed
252 km/h
157 mph
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
BMWM3 Convertible (E30)2.3
Power
215 hp
160 kW
0-100 km/h7.3 s
Top speed
239 km/h
149 mph
8.0 L/100 km
29.4 mpg US
35.3 mpg UK

Porsche 968 Cabrio 3.0 16V 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
Porsche968 Cabrio3.0 16V
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
6.5 s
BMWM3 Convertible (E30)2.3
8.0 L/100 km
29.4 mpg US
35.3 mpg UK
7.3 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
Porsche968 Cabrio3.0 16V
167 hp/t
124 kW/t
6.0 kg/hp
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
BMWM3 Convertible (E30)2.3
158 hp/t
118 kW/t
6.3 kg/hp
8.0 L/100 km
29.4 mpg US
35.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche968 Cabrio3.0 16VBMWM3 Convertible (E30)2.3
Power
240 hp
179 kW
215 hp
160 kW
Torque
305 Nm
225 lb-ft
230 Nm
170 lb-ft
Acceleration
6.5 s
7.3 s
Top speed
252 km/h
157 mph
239 km/h
149 mph
Lightness
1,440 kg
3,175 lb
1,360 kg
2,998 lb
Fuel consumption
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
8.0 L/100 km
29.4 mpg US
35.3 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
225 L
7.9 cu ft
Length
4,320 mm
170.1 in
Height
1,275 mm
50.2 in
Doors/seats
2 doors
4 seats
Trunk
303 L
10.7 cu ft
Length
4,345 mm
171.1 in
Height
1,370 mm
53.9 in
Range score
841 km
523 mi
775 km
482 mi
Trunk score
225 L
7.9 cu ft
303 L
10.7 cu ft
Power-to-weight score
167 hp/t
124 kW/t
6.0 kg/hp
158 hp/t
118 kW/t
6.3 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
VehiclePorsche 968 Cabrio 3.0 16VBMW M3 Convertible (E30) 2.3
Consumption8.8 L/100 km26.7 mpg US32.1 mpg UK8 L/100 km29.4 mpg US35.3 mpg UK
Cost / 100 km15.40 LC100 km14.00 LC100 km
Cost / 100 mi24.78 LC100 mi22.53 LC100 mi
Annual fuel used1,320 L349 US gal290 UK gal1,200 L317 US gal264 UK gal
Annual fuel cost2,310 LC/year2,100 LC/year

Head-to-head comparisons

Porsche 968 Cabrio 3.0 16V

  • Has 25 hp more
  • Has 75 Nm more
  • Is 0.8 s quicker from 0-100 km/h
  • Has 13 km/h (8 mph) higher top speed
  • Has 9 hp/t better power-to-weight
  • Has 66 km (41 mi) more estimated range

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW M3 Convertible (E30) 2.3

  • Is 80 kg lighter
  • Uses 0.8 L/100 km less fuel
  • Has 78 L more trunk volume

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 968 Cabrio 3.0 16V
BMW M3 Convertible (E30) 2.3
Compare selected cars
2 vehicles selected

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