Car comparison

Alfa Romeo Spider (939) 3.2 V6vsBMW 1 Series Convertible (E88) 125i

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

New comparison

Alfa Romeo Spider (939)

3.2 V6

260 hp3195 ccGasolineAWDAutomaticNaturally aspiratedCabriolet / convertible2006-2010
VS

BMW 1 Series Convertible (E88)

125i

218 hp2996 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2008-2011

Comparison overview

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

Best choices

BMW 1 Series Convertible (E88) 125i

  • Quickest 0-100 km/h
    6.8 s
  • Lightest
    1,510 kg
    3,329 lb
  • Lowest combined fuel consumption
    8.1 L/100 km
    29.0 mpg US
    34.9 mpg UK
  • Best estimated range
    654 km
    407 mi
  • Largest trunk
    260 L
  • Best economy score
    85/100
  • Best practicality score
    43/100

Alfa Romeo Spider (939) 3.2 V6

  • Fastest top speed
    240 km/h
    149 mph
  • Most powerful
    260 hp
    194 kW
  • Highest torque
    322 Nm
    237 lb-ft
  • Best power-to-weight
    147 hp/t
    110 kW/t
    6.8 kg/hp
  • Best overall score
    50/100
  • Best performance score
    54/100

Specification comparison

Specification comparison
ModelAlfa RomeoSpider (939)3.2 V6BMW1 Series Convertible (E88)125i
Power
260hp194kW
218hp163kW
Torque
322Nm237lb-ft
270Nm199lb-ft
Curb weight
1,765kg3,891lb
1,510kg3,329lb
Gross weight-
1,950kg4,299lb
Top speed
240 km/h
149 mph
238 km/h
148 mph
To 99% top speed
99.7s99% target: 238 km/h / 148 mph
Calculated
88.3s99% target: 236 km/h / 146 mph
Calculated
0-100 km/h
7.0s
6.8s
0-200 km/h
31.0s
Calculated
29.2s
Calculated
0-60 mph
6.6s
Calculated
6.4s
Calculated
Fuel consumption
12.2L/100 km19.3mpg US23.2mpg UK
8.1L/100 km29mpg US34.9mpg UK
Fuel consumption city-
11.7L/100 km20.1mpg US24.1mpg UK
Fuel consumption highway-
6L/100 km39.2mpg US47.1mpg UK
Quarter mile
15.0s
Calculated
14.8s
Calculated
Power-to-weight
147hp/t110kW/t67hp/1000 lb
Calculated
144hp/t108kW/t65hp/1000 lb
Calculated
Torque-to-weight
182Nm/t122lb-ft/ton
Calculated
179Nm/t120lb-ft/ton
Calculated
Estimated range
574km357mi
Calculated
654km407mi
Calculated
Displacement
3,195cc195cu in
2,996cc183cu in
Length
4,393mm173in
4,360mm172in
Width
1,830mm72in
1,748mm69in
Height
1,318mm52in
1,411mm56in
Wheelbase
2,528mm100in
2,660mm105in
Front track
1,579mm62in
1,474mm58in
Rear track
1,559mm61in
1,507mm59in
Ground clearance-
140mm6in
Trunk volume
253L
260L
Max trunk volume-
305L
Doors
2
2
Seats
4
4
Fuel tank
70L
53L
CO2 emissions-
195g/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) 3.2 V6BMW 1 Series Convertible (E88) 125iPowerTorque
  • Alfa Romeo Spider (939) 3.2 V6: Power / Torque
  • BMW 1 Series Convertible (E88) 125i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Alfa RomeoSpider (939)3.2 V66,200 rpm4,500 rpm6,450 rpm
BMW1 Series Convertible (E88)125i6,100 rpm2,500-4,250 rpm6,350 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlfa RomeoSpider (939)3.2 V6BMW1 Series Convertible (E88)125i
Acceleration checkpoints
0-60 mph
0-97 km/h
6.6 s
6.4 s
0-100 km/h
0-62 mph
7.0 s
6.8 s
0-200 km/h
0-124 mph
31.0 s
29.2 s
Top speed
240 km/h
149 mph
238 km/h
148 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.4 s
6.4 s
1/8 mile
201 m
9.7 s
9.7 s
1000 ft
305 m
12.6 s
12.5 s
1/4 mile
402 m
15.0 s
14.8 s
Trap speed
1/4 mile
402 m
152 km/h
94 mph
154 km/h
96 mph

Power comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)3.2 V6
260 hp
194 kW
BMW1 Series Convertible (E88)125i
218 hp
163 kW

Alfa Romeo Spider (939) 3.2 V6 has 42 hp more than BMW 1 Series Convertible (E88) 125i.

The biggest power difference is between BMW 1 Series Convertible (E88) 125i and Alfa Romeo Spider (939) 3.2 V6: 42 hp (31 kW).

Torque comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)3.2 V6
322 Nm
237 lb-ft
BMW1 Series Convertible (E88)125i
270 Nm
199 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)3.2 V6
1,765 kg
3,891 lb
BMW1 Series Convertible (E88)125i
1,510 kg
3,329 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)3.2 V6
240 km/h
149 mph
BMW1 Series Convertible (E88)125i
238 km/h
148 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)3.2 V67.0 s
BMW1 Series Convertible (E88)125i6.8 s

Although Alfa Romeo Spider (939) 3.2 V6 has more power, BMW 1 Series Convertible (E88) 125i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 1 Series Convertible (E88) 125i and Alfa Romeo Spider (939) 3.2 V6: 0.2 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)3.2 V6
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
BMW1 Series Convertible (E88)125i
8.1 L/100 km
29.0 mpg US
34.9 mpg UK

The biggest fuel consumption difference is between BMW 1 Series Convertible (E88) 125i and Alfa Romeo Spider (939) 3.2 V6: 4.1 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)3.2 V6
147 hp/t
110 kW/t
6.8 kg/hp
BMW1 Series Convertible (E88)125i
144 hp/t
108 kW/t
6.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Alfa RomeoSpider (939)3.2 V6
574 km
357 mi
BMW1 Series Convertible (E88)125i
654 km
407 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Alfa RomeoSpider (939)3.2 V6
260 hp
194 kW
7.0 s
240 km/h
149 mph
BMW1 Series Convertible (E88)125i
218 hp
163 kW
6.8 s
238 km/h
148 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)3.2 V6
Power
260 hp
194 kW
0-100 km/h7.0 s
Top speed
240 km/h
149 mph
Doors/seats
2 doors
4 seats
Trunk
253 L
8.9 cu ft
Length
4,393 mm
173.0 in
Height
1,318 mm
51.9 in
BMW1 Series Convertible (E88)125i
Power
218 hp
163 kW
0-100 km/h6.8 s
Top speed
238 km/h
148 mph
Doors/seats
2 doors
4 seats
Trunk
260 L
9.2 cu ft
Length
4,360 mm
171.7 in
Height
1,411 mm
55.6 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)3.2 V6
Power
260 hp
194 kW
0-100 km/h7.0 s
Top speed
240 km/h
149 mph
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
BMW1 Series Convertible (E88)125i
Power
218 hp
163 kW
0-100 km/h6.8 s
Top speed
238 km/h
148 mph
8.1 L/100 km
29.0 mpg US
34.9 mpg UK

BMW 1 Series Convertible (E88) 125i 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)3.2 V6
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
7.0 s
BMW1 Series Convertible (E88)125i
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
6.8 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)3.2 V6
147 hp/t
110 kW/t
6.8 kg/hp
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
BMW1 Series Convertible (E88)125i
144 hp/t
108 kW/t
6.9 kg/hp
8.1 L/100 km
29.0 mpg US
34.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlfa RomeoSpider (939)3.2 V6BMW1 Series Convertible (E88)125i
Power
260 hp
194 kW
218 hp
163 kW
Torque
322 Nm
237 lb-ft
270 Nm
199 lb-ft
Acceleration
7.0 s
6.8 s
Top speed
240 km/h
149 mph
238 km/h
148 mph
Lightness
1,765 kg
3,891 lb
1,510 kg
3,329 lb
Fuel consumption
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
Practicality
Doors/seats
2 doors
4 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
4 seats
Trunk
260 L
9.2 cu ft
Length
4,360 mm
171.7 in
Height
1,411 mm
55.6 in
Range score
574 km
357 mi
654 km
407 mi
CO2 score
-
195 g/km
Trunk score
253 L
8.9 cu ft
260 L
9.2 cu ft
Power-to-weight score
147 hp/t
110 kW/t
6.8 kg/hp
144 hp/t
108 kW/t
6.9 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) 3.2 V6BMW 1 Series Convertible (E88) 125i
Consumption12.2 L/100 km19.3 mpg US23.2 mpg UK8.1 L/100 km29 mpg US34.9 mpg UK
Cost / 100 km21.35 LC100 km14.17 LC100 km
Cost / 100 mi34.36 LC100 mi22.81 LC100 mi
Annual fuel used1,830 L483 US gal403 UK gal1,215 L321 US gal267 UK gal
Annual fuel cost3,203 LC/year2,126 LC/year

Head-to-head comparisons

Alfa Romeo Spider (939) 3.2 V6

  • Has 42 hp more
  • Has 52 Nm more
  • Has 2 km/h (1 mph) higher top speed
  • Has 3 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW 1 Series Convertible (E88) 125i

  • Is 255 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Uses 4.1 L/100 km less fuel
  • Has 81 km (50 mi) more estimated range
  • Has 7 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alfa Romeo Spider (939) 3.2 V6
BMW 1 Series Convertible (E88) 125i
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2 vehicles selected

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