Car comparison

Porsche 911 Cabriolet (991) Carrera 3.4vsMorgan Plus 8 4.8 V8

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

New comparison

Porsche 911 Cabriolet (991)

Carrera 3.4

350 hp3436 ccGasolineRWDDual-clutchNaturally aspiratedCabriolet / convertible2011-2015
VS

Morgan Plus 8

4.8 V8

367 hp4799 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2012-2018

Comparison overview

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

Best choices

Porsche 911 Cabriolet (991) Carrera 3.4

  • Fastest top speed
    284 km/h
    176 mph
  • Lowest combined fuel consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Lowest city consumption
    11.5 L/100 km
    20.5 mpg US
    24.6 mpg UK
  • Lowest highway consumption
    6.7 L/100 km
    35.1 mpg US
    42.2 mpg UK
  • Lowest CO2 emissions
    195 g/km
  • Best estimated range
    762 km
    473 mi
  • Best overall score
    64/100
  • Best economy score
    84/100
  • Best practicality score
    44/100

Morgan Plus 8 4.8 V8

  • Quickest 0-100 km/h
    4.5 s
  • Most powerful
    367 hp
    274 kW
  • Highest torque
    490 Nm
    361 lb-ft
  • Lightest
    1,220 kg
    2,690 lb
  • Best power-to-weight
    301 hp/t
    224 kW/t
    3.3 kg/hp
  • Best performance score
    74/100

Specification comparison

Specification comparison
ModelPorsche911 Cabriolet (991)Carrera 3.4MorganPlus 84.8 V8
Power
350hp261kW
367hp274kW
Torque
390Nm288lb-ft
490Nm361lb-ft
Curb weight
1,490kg3,285lb
1,220kg2,690lb
Gross weight
1,870kg4,123lb
-
Top speed
284 km/h
176 mph
249 km/h
155 mph
To 99% top speed
63.0s99% target: 281 km/h / 175 mph
Calculated
45.2s99% target: 247 km/h / 153 mph
Calculated
0-100 km/h
4.6s
4.5s
0-200 km/h
14.4s
Calculated
15.1s
Calculated
0-60 mph
4.4s
Calculated
4.3s
Calculated
Fuel consumption
8.4L/100 km28mpg US33.6mpg UK
12.1L/100 km19.4mpg US23.3mpg UK
Fuel consumption city
11.5L/100 km20.5mpg US24.6mpg UK
18.2L/100 km12.9mpg US15.5mpg UK
Fuel consumption highway
6.7L/100 km35.1mpg US42.2mpg UK
8.7L/100 km27mpg US32.5mpg UK
Quarter mile
12.6s
Calculated
12.5s
Calculated
Power-to-weight
235hp/t175kW/t107hp/1000 lb
Calculated
301hp/t224kW/t136hp/1000 lb
Calculated
Torque-to-weight
262Nm/t175lb-ft/ton
Calculated
402Nm/t269lb-ft/ton
Calculated
Estimated range
762km473mi
Calculated
455km282mi
Calculated
Displacement
3,436cc210cu in
4,799cc293cu in
Length
4,491mm177in
4,010mm158in
Width
1,808mm71in
1,751mm69in
Height
1,299mm51in
1,220mm48in
Wheelbase
2,450mm96in
-
Front track
1,532mm60in
-
Rear track
1,518mm60in
-
Trunk volume
290L
-
Doors
2
2
Seats
4
2
Fuel tank
64L
55L
CO2 emissions
195g/km
282g/km

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 911 Cabriolet (991) Carrera 3.4Morgan Plus 8 4.8 V8PowerTorque
  • Porsche 911 Cabriolet (991) Carrera 3.4: Power / Torque
  • Morgan Plus 8 4.8 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche911 Cabriolet (991)Carrera 3.47,400 rpm5,600 rpm7,650 rpm
MorganPlus 84.8 V86,300 rpm-6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche911 Cabriolet (991)Carrera 3.4MorganPlus 84.8 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
4.3 s
0-100 km/h
0-62 mph
4.6 s
4.5 s
0-200 km/h
0-124 mph
14.4 s
15.1 s
Top speed
284 km/h
176 mph
249 km/h
155 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.6 s
5.5 s
1/8 mile
201 m
8.3 s
8.2 s
1000 ft
305 m
10.6 s
10.6 s
1/4 mile
402 m
12.6 s
12.5 s
Trap speed
1/4 mile
402 m
187 km/h
116 mph
185 km/h
115 mph

Power comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.4
350 hp
261 kW
MorganPlus 84.8 V8
367 hp
274 kW

Morgan Plus 8 4.8 V8 has 17 hp more than Porsche 911 Cabriolet (991) Carrera 3.4.

The biggest power difference is between Porsche 911 Cabriolet (991) Carrera 3.4 and Morgan Plus 8 4.8 V8: 17 hp (13 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.4
390 Nm
288 lb-ft
MorganPlus 84.8 V8
490 Nm
361 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.4
1,490 kg
3,285 lb
MorganPlus 84.8 V8
1,220 kg
2,690 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.4
284 km/h
176 mph
MorganPlus 84.8 V8
249 km/h
155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.44.6 s
MorganPlus 84.8 V84.5 s

The biggest 0-100 km/h difference is between Morgan Plus 8 4.8 V8 and Porsche 911 Cabriolet (991) Carrera 3.4: 0.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.4
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
MorganPlus 84.8 V8
12.1 L/100 km
19.4 mpg US
23.3 mpg UK

The biggest fuel consumption difference is between Porsche 911 Cabriolet (991) Carrera 3.4 and Morgan Plus 8 4.8 V8: 3.7 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
Porsche911 Cabriolet (991)Carrera 3.4
235 hp/t
175 kW/t
4.3 kg/hp
MorganPlus 84.8 V8
301 hp/t
224 kW/t
3.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche911 Cabriolet (991)Carrera 3.4
762 km
473 mi
MorganPlus 84.8 V8
455 km
282 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche911 Cabriolet (991)Carrera 3.4
350 hp
261 kW
4.6 s
284 km/h
176 mph
MorganPlus 84.8 V8
367 hp
274 kW
4.5 s
249 km/h
155 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
Porsche911 Cabriolet (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.6 s
Top speed
284 km/h
176 mph
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,491 mm
176.8 in
Height
1,299 mm
51.1 in
MorganPlus 84.8 V8
Power
367 hp
274 kW
0-100 km/h4.5 s
Top speed
249 km/h
155 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,010 mm
157.9 in
Height
1,220 mm
48.0 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
Porsche911 Cabriolet (991)Carrera 3.4
Power
350 hp
261 kW
0-100 km/h4.6 s
Top speed
284 km/h
176 mph
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
MorganPlus 84.8 V8
Power
367 hp
274 kW
0-100 km/h4.5 s
Top speed
249 km/h
155 mph
12.1 L/100 km
19.4 mpg US
23.3 mpg UK

Porsche 911 Cabriolet (991) Carrera 3.4 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
Porsche911 Cabriolet (991)Carrera 3.4
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
4.6 s
MorganPlus 84.8 V8
12.1 L/100 km
19.4 mpg US
23.3 mpg UK
4.5 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
Porsche911 Cabriolet (991)Carrera 3.4
235 hp/t
175 kW/t
4.3 kg/hp
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
MorganPlus 84.8 V8
301 hp/t
224 kW/t
3.3 kg/hp
12.1 L/100 km
19.4 mpg US
23.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche911 Cabriolet (991)Carrera 3.4MorganPlus 84.8 V8
Power
350 hp
261 kW
367 hp
274 kW
Torque
390 Nm
288 lb-ft
490 Nm
361 lb-ft
Acceleration
4.6 s
4.5 s
Top speed
284 km/h
176 mph
249 km/h
155 mph
Lightness
1,490 kg
3,285 lb
1,220 kg
2,690 lb
Fuel consumption
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
12.1 L/100 km
19.4 mpg US
23.3 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,491 mm
176.8 in
Height
1,299 mm
51.1 in
Doors/seats
2 doors
2 seats
Trunk-
Length
4,010 mm
157.9 in
Height
1,220 mm
48.0 in
Range score
762 km
473 mi
455 km
282 mi
CO2 score
195 g/km
282 g/km
Trunk score
290 L
10.2 cu ft
-
Power-to-weight score
235 hp/t
175 kW/t
4.3 kg/hp
301 hp/t
224 kW/t
3.3 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 911 Cabriolet (991) Carrera 3.4Morgan Plus 8 4.8 V8
Consumption8.4 L/100 km28 mpg US33.6 mpg UK12.1 L/100 km19.4 mpg US23.3 mpg UK
Cost / 100 km14.70 LC100 km21.18 LC100 km
Cost / 100 mi23.66 LC100 mi34.08 LC100 mi
Annual fuel used1,260 L333 US gal277 UK gal1,815 L479 US gal399 UK gal
Annual fuel cost2,205 LC/year3,176 LC/year

Head-to-head comparisons

Porsche 911 Cabriolet (991) Carrera 3.4

  • Has 35 km/h (22 mph) higher top speed
  • Uses 3.7 L/100 km less fuel
  • Has 307 km (191 mi) more estimated range
  • Emits 87 g/km less CO2

Pros

  • Highest top speed
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest

Morgan Plus 8 4.8 V8

  • Has 17 hp more
  • Has 100 Nm more
  • Is 270 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 66 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 911 Cabriolet (991) Carrera 3.4
Morgan Plus 8 4.8 V8
Compare selected cars
2 vehicles selected

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