Car comparison

BMW 3 Series Convertible (E93) 330dvsBMW 1 Series Convertible (E88) 125i

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

New comparison

BMW 3 Series Convertible (E93)

330d

245 hp2993 ccDieselRWDManualTurbochargedCabriolet / convertible2008-2010
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 3 Series Convertible (E93) 330d

  • Quickest 0-100 km/h
    6.4 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    245 hp
    183 kW
  • Highest torque
    540 Nm
    398 lb-ft
  • Best power-to-weight
    147 hp/t
    109 kW/t
    6.8 kg/hp
  • Lowest combined fuel consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest city consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Lowest highway consumption
    5.2 L/100 km
    45.2 mpg US
    54.3 mpg UK
  • Best estimated range
    1,033 km
    642 mi
  • Best overall score
    56/100
  • Best performance score
    63/100
  • Best economy score
    90/100

Specification comparison

Specification comparison
ModelBMW3 Series Convertible (E93)330dBMW1 Series Convertible (E88)125i
Power
245hp183kW
218hp163kW
Torque
540Nm398lb-ft
270Nm199lb-ft
Curb weight
1,670kg3,682lb
1,510kg3,329lb
Gross weight-
1,950kg4,299lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
238 km/h
148 mph
To 99% top speed
89.8s99% target: 257 km/h / 160 mph
Calculated
88.3s99% target: 236 km/h / 146 mph
Calculated
0-100 km/h
6.4s
6.8s
0-200 km/h
23.4s
Calculated
29.2s
Calculated
0-60 mph
6.1s
Calculated
6.4s
Calculated
Fuel consumption
6.1L/100 km38.6mpg US46.3mpg UK
8.1L/100 km29mpg US34.9mpg UK
Fuel consumption city
7.7L/100 km30.5mpg US36.7mpg UK
11.7L/100 km20.1mpg US24.1mpg UK
Fuel consumption highway
5.2L/100 km45.2mpg US54.3mpg UK
6L/100 km39.2mpg US47.1mpg UK
Quarter mile
14.4s
Calculated
14.8s
Calculated
Power-to-weight
147hp/t109kW/t67hp/1000 lb
Calculated
144hp/t108kW/t65hp/1000 lb
Calculated
Torque-to-weight
323Nm/t216lb-ft/ton
Calculated
179Nm/t120lb-ft/ton
Calculated
Estimated range
1,033km642mi
Calculated
654km407mi
Calculated
Displacement
2,993cc183cu in
2,996cc183cu in
Length
4,580mm180in
4,360mm172in
Width
1,782mm70in
1,748mm69in
Height
1,384mm54in
1,411mm56in
Wheelbase
2,760mm109in
2,660mm105in
Front track
1,500mm59in
1,474mm58in
Rear track
1,513mm60in
1,507mm59in
Ground clearance
143mm6in
140mm6in
Trunk volume
210L
260L
Max trunk volume
350L
305L
Doors
2
2
Seats
4
4
Fuel tank
63L
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.

BMW 3 Series Convertible (E93) 330dBMW 1 Series Convertible (E88) 125iPowerTorque
  • BMW 3 Series Convertible (E93) 330d: Power / Torque
  • BMW 1 Series Convertible (E88) 125i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW3 Series Convertible (E93)330d4,000 rpm1,750-3,000 rpm4,250 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
MetricBMW3 Series Convertible (E93)330dBMW1 Series Convertible (E88)125i
Acceleration checkpoints
0-60 mph
0-97 km/h
6.1 s
6.4 s
0-100 km/h
0-62 mph
6.4 s
6.8 s
0-200 km/h
0-124 mph
23.4 s
29.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
238 km/h
148 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.3 s
6.4 s
1/8 mile
201 m
9.5 s
9.7 s
1000 ft
305 m
12.2 s
12.5 s
1/4 mile
402 m
14.4 s
14.8 s
Trap speed
1/4 mile
402 m
162 km/h
100 mph
154 km/h
96 mph

Power comparison

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

Chart data table
VehicleValue
BMW3 Series Convertible (E93)330d
245 hp
183 kW
BMW1 Series Convertible (E88)125i
218 hp
163 kW

BMW 3 Series Convertible (E93) 330d has 27 hp more than BMW 1 Series Convertible (E88) 125i.

The biggest power difference is between BMW 1 Series Convertible (E88) 125i and BMW 3 Series Convertible (E93) 330d: 27 hp (20 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW3 Series Convertible (E93)330d
540 Nm
398 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
BMW3 Series Convertible (E93)330d
1,670 kg
3,682 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
BMW3 Series Convertible (E93)330d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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
BMW3 Series Convertible (E93)330d6.4 s
BMW1 Series Convertible (E88)125i6.8 s

The biggest 0-100 km/h difference is between BMW 3 Series Convertible (E93) 330d and BMW 1 Series Convertible (E88) 125i: 0.4 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW3 Series Convertible (E93)330d
6.1 L/100 km
38.6 mpg US
46.3 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 3 Series Convertible (E93) 330d and BMW 1 Series Convertible (E88) 125i: 2.0 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
BMW3 Series Convertible (E93)330d
147 hp/t
109 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
BMW3 Series Convertible (E93)330d
1,033 km
642 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
BMW3 Series Convertible (E93)330d
245 hp
183 kW
6.4 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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
BMW3 Series Convertible (E93)330d
Power
245 hp
183 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
210 L
7.4 cu ft
Length
4,580 mm
180.3 in
Height
1,384 mm
54.5 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
BMW3 Series Convertible (E93)330d
Power
245 hp
183 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.1 L/100 km
38.6 mpg US
46.3 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 3 Series Convertible (E93) 330d 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
BMW3 Series Convertible (E93)330d
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
6.4 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
BMW3 Series Convertible (E93)330d
147 hp/t
109 kW/t
6.8 kg/hp
6.1 L/100 km
38.6 mpg US
46.3 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
VehicleBMW3 Series Convertible (E93)330dBMW1 Series Convertible (E88)125i
Power
245 hp
183 kW
218 hp
163 kW
Torque
540 Nm
398 lb-ft
270 Nm
199 lb-ft
Acceleration
6.4 s
6.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
238 km/h
148 mph
Lightness
1,670 kg
3,682 lb
1,510 kg
3,329 lb
Fuel consumption
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
210 L
7.4 cu ft
Length
4,580 mm
180.3 in
Height
1,384 mm
54.5 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
1,033 km
642 mi
654 km
407 mi
CO2 score
-
195 g/km
Trunk score
210 L
7.4 cu ft
260 L
9.2 cu ft
Power-to-weight score
147 hp/t
109 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
VehicleBMW 3 Series Convertible (E93) 330dBMW 1 Series Convertible (E88) 125i
Consumption6.1 L/100 km38.6 mpg US46.3 mpg UK8.1 L/100 km29 mpg US34.9 mpg UK
Cost / 100 km10.67 LC100 km14.17 LC100 km
Cost / 100 mi17.18 LC100 mi22.81 LC100 mi
Annual fuel used915 L242 US gal201 UK gal1,215 L321 US gal267 UK gal
Annual fuel cost1,601 LC/year2,126 LC/year

Head-to-head comparisons

BMW 3 Series Convertible (E93) 330d

  • Has 27 hp more
  • Has 270 Nm more
  • Is 0.4 s quicker from 0-100 km/h
  • Has 22 km/h (14 mph) higher top speed
  • Uses 2.0 L/100 km less fuel
  • Has 2 hp/t better power-to-weight
  • Has 378 km (235 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

BMW 1 Series Convertible (E88) 125i

  • Is 160 kg lighter
  • Has 50 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

Brand
Model
Generation
Engine or modification
BMW 3 Series Convertible (E93) 330d
BMW 1 Series Convertible (E88) 125i
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