Car comparison

Alfa Romeo Spider (939) 1.8 TBivsMercedes-Benz W111 Cabriolet 280 SE 3.5 V8

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

New comparison

Alfa Romeo Spider (939)

1.8 TBi

200 hp1742 ccGasolineFWDManualTurbochargedCabriolet / convertible2009-2010
VS

Mercedes-Benz W111 Cabriolet

280 SE 3.5 V8

200 hp3499 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible1969-1971

Comparison overview

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

Best choices

Alfa Romeo Spider (939) 1.8 TBi

  • Quickest 0-100 km/h
    7.8 s
  • Fastest top speed
    235 km/h
    146 mph
  • Most powerful
    200 hp
    149 kW
  • Highest torque
    320 Nm
    236 lb-ft
  • Lightest
    1,490 kg
    3,285 lb
  • Best power-to-weight
    134 hp/t
    100 kW/t
    7.5 kg/hp
  • Lowest combined fuel consumption
    8.2 L/100 km
    28.7 mpg US
    34.4 mpg UK
  • Best estimated range
    854 km
    530 mi
  • Best performance score
    49/100
  • Best economy score
    85/100

Specification comparison

Specification comparison
ModelAlfa RomeoSpider (939)1.8 TBiMercedes-BenzW111 Cabriolet280 SE 3.5 V8
Power
200hp149kW
200hp149kW
Torque
320Nm236lb-ft
286Nm211lb-ft
Curb weight
1,490kg3,285lb
1,650kg3,638lb
Gross weight
1,840kg4,057lb
2,120kg4,674lb
Top speed
235 km/h
146 mph
205 km/h
127 mph
To 99% top speed
107.2s99% target: 233 km/h / 145 mph
Calculated
105.1s99% target: 203 km/h / 126 mph
Calculated
0-100 km/h
7.8s
9.4s
0-200 km/h
36.0s
Calculated
80.3s
Calculated
0-60 mph
7.4s
Calculated
8.8s
Calculated
Fuel consumption
8.2L/100 km28.7mpg US34.4mpg UK
13.5L/100 km17.4mpg US20.9mpg UK
Fuel consumption city
11.9L/100 km19.8mpg US23.7mpg UK
-
Fuel consumption highway
6.1L/100 km38.6mpg US46.3mpg UK
-
Quarter mile
15.6s
Calculated
16.8s
Calculated
Power-to-weight
134hp/t100kW/t61hp/1000 lb
Calculated
121hp/t90kW/t55hp/1000 lb
Calculated
Torque-to-weight
215Nm/t144lb-ft/ton
Calculated
173Nm/t116lb-ft/ton
Calculated
Estimated range
854km530mi
Calculated
607km377mi
Calculated
Displacement
1,742cc106cu in
3,499cc214cu in
Length
4,393mm173in
4,905mm193in
Width
1,830mm72in
1,845mm73in
Height
1,318mm52in
1,435mm56in
Wheelbase
2,528mm100in
2,750mm108in
Front track
1,579mm62in
1,482mm58in
Rear track
1,559mm61in
1,485mm58in
Trunk volume
253L
530L
Doors
2
2
Seats
2
5
Fuel tank
70L
82L
CO2 emissions
192g/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.

Alfa Romeo Spider (939) 1.8 TBiMercedes-Benz W111 Cabriolet 280 SE 3.5 V8PowerTorque
  • Alfa Romeo Spider (939) 1.8 TBi: Power / Torque
  • Mercedes-Benz W111 Cabriolet 280 SE 3.5 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Alfa RomeoSpider (939)1.8 TBi5,000 rpm1,400 rpm5,250 rpm
Mercedes-BenzW111 Cabriolet280 SE 3.5 V85,800 rpm4,000 rpm6,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlfa RomeoSpider (939)1.8 TBiMercedes-BenzW111 Cabriolet280 SE 3.5 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
7.4 s
8.8 s
0-100 km/h
0-62 mph
7.8 s
9.4 s
0-200 km/h
0-124 mph
36.0 s
80.3 s
Top speed
235 km/h
146 mph
205 km/h
127 mph
Drag race simulation
60 ft
18 m
2.5 s
2.6 s
330 ft
101 m
6.7 s
7.1 s
1/8 mile
201 m
10.2 s
10.8 s
1000 ft
305 m
13.1 s
14.0 s
1/4 mile
402 m
15.6 s
16.8 s
Trap speed
1/4 mile
402 m
146 km/h
91 mph
134 km/h
83 mph

Power comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi
200 hp
149 kW
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
200 hp
149 kW

Torque comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi
320 Nm
236 lb-ft
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
286 Nm
211 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi
1,490 kg
3,285 lb
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
1,650 kg
3,638 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi
235 km/h
146 mph
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
205 km/h
127 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi7.8 s
Mercedes-BenzW111 Cabriolet280 SE 3.5 V89.4 s

The biggest 0-100 km/h difference is between Alfa Romeo Spider (939) 1.8 TBi and Mercedes-Benz W111 Cabriolet 280 SE 3.5 V8: 1.6 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
13.5 L/100 km
17.4 mpg US
20.9 mpg UK

The biggest fuel consumption difference is between Alfa Romeo Spider (939) 1.8 TBi and Mercedes-Benz W111 Cabriolet 280 SE 3.5 V8: 5.3 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
Alfa RomeoSpider (939)1.8 TBi
134 hp/t
100 kW/t
7.4 kg/hp
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
121 hp/t
90 kW/t
8.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)1.8 TBi
854 km
530 mi
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
607 km
377 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Alfa RomeoSpider (939)1.8 TBi
200 hp
149 kW
7.8 s
235 km/h
146 mph
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
200 hp
149 kW
9.4 s
205 km/h
127 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
Alfa RomeoSpider (939)1.8 TBi
Power
200 hp
149 kW
0-100 km/h7.8 s
Top speed
235 km/h
146 mph
Doors/seats
2 doors
2 seats
Trunk
253 L
8.9 cu ft
Length
4,393 mm
173.0 in
Height
1,318 mm
51.9 in
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
Power
200 hp
149 kW
0-100 km/h9.4 s
Top speed
205 km/h
127 mph
Doors/seats
2 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,905 mm
193.1 in
Height
1,435 mm
56.5 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
Alfa RomeoSpider (939)1.8 TBi
Power
200 hp
149 kW
0-100 km/h7.8 s
Top speed
235 km/h
146 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
Power
200 hp
149 kW
0-100 km/h9.4 s
Top speed
205 km/h
127 mph
13.5 L/100 km
17.4 mpg US
20.9 mpg UK

Alfa Romeo Spider (939) 1.8 TBi 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
Alfa RomeoSpider (939)1.8 TBi
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
7.8 s
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
9.4 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
Alfa RomeoSpider (939)1.8 TBi
134 hp/t
100 kW/t
7.5 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Mercedes-BenzW111 Cabriolet280 SE 3.5 V8
121 hp/t
90 kW/t
8.3 kg/hp
13.5 L/100 km
17.4 mpg US
20.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlfa RomeoSpider (939)1.8 TBiMercedes-BenzW111 Cabriolet280 SE 3.5 V8
Power
200 hp
149 kW
200 hp
149 kW
Torque
320 Nm
236 lb-ft
286 Nm
211 lb-ft
Acceleration
7.8 s
9.4 s
Top speed
235 km/h
146 mph
205 km/h
127 mph
Lightness
1,490 kg
3,285 lb
1,650 kg
3,638 lb
Fuel consumption
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
253 L
8.9 cu ft
Length
4,393 mm
173.0 in
Height
1,318 mm
51.9 in
Doors/seats
2 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,905 mm
193.1 in
Height
1,435 mm
56.5 in
Range score
854 km
530 mi
607 km
377 mi
CO2 score
192 g/km
-
Trunk score
253 L
8.9 cu ft
530 L
18.7 cu ft
Power-to-weight score
134 hp/t
100 kW/t
7.5 kg/hp
121 hp/t
90 kW/t
8.3 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
VehicleAlfa Romeo Spider (939) 1.8 TBiMercedes-Benz W111 Cabriolet 280 SE 3.5 V8
Consumption8.2 L/100 km28.7 mpg US34.4 mpg UK13.5 L/100 km17.4 mpg US20.9 mpg UK
Cost / 100 km14.35 LC100 km23.63 LC100 km
Cost / 100 mi23.09 LC100 mi38.02 LC100 mi
Annual fuel used1,230 L325 US gal271 UK gal2,025 L535 US gal445 UK gal
Annual fuel cost2,153 LC/year3,544 LC/year

Head-to-head comparisons

Alfa Romeo Spider (939) 1.8 TBi

  • Has 34 Nm more
  • Is 160 kg lighter
  • Is 1.6 s quicker from 0-100 km/h
  • Has 30 km/h (19 mph) higher top speed
  • Uses 5.3 L/100 km less fuel
  • Has 13 hp/t better power-to-weight
  • Has 246 km (153 mi) more estimated range

Pros

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

Cons

  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alfa Romeo Spider (939) 1.8 TBi
Mercedes-Benz W111 Cabriolet 280 SE 3.5 V8
Compare selected cars
2 vehicles selected

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