Car comparison

BMW 1 Series Convertible (E88) 125ivsCaterham CSR CSR

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

New comparison

BMW 1 Series Convertible (E88)

125i

218 hp2996 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2008-2011
VS

Caterham CSR

CSR

200 hp2261 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2004-2014

Comparison overview

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

Best choices

BMW 1 Series Convertible (E88) 125i

  • Fastest top speed
    238 km/h
    148 mph
  • Most powerful
    218 hp
    163 kW
  • Highest torque
    270 Nm
    199 lb-ft
  • Lowest combined fuel consumption
    8.1 L/100 km
    29.0 mpg US
    34.9 mpg UK
  • Lowest city consumption
    11.7 L/100 km
    20.1 mpg US
    24.1 mpg UK
  • Lowest highway consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Best estimated range
    654 km
    407 mi
  • Best economy score
    85/100
  • Best practicality score
    43/100

Caterham CSR CSR

  • Quickest 0-100 km/h
    3.7 s
  • Lightest
    565 kg
    1,246 lb
  • Best power-to-weight
    354 hp/t
    264 kW/t
    2.8 kg/hp
  • Best overall score
    52/100
  • Best performance score
    62/100

Specification comparison

Specification comparison
ModelBMW1 Series Convertible (E88)125iCaterhamCSRCSR
Power
218hp163kW
200hp149kW
Torque
270Nm199lb-ft
221Nm163lb-ft
Curb weight
1,510kg3,329lb
565kg1,246lb
Gross weight
1,950kg4,299lb
875kg1,929lb
Top speed
238 km/h
148 mph
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Calculated
To 99% top speed
88.3s99% target: 236 km/h / 146 mph
Calculated
36.3s99% target: 233 km/h / 145 mph
Calculated
0-100 km/h
6.8s
3.7s
0-200 km/h
29.2s
Calculated
14.0s
Calculated
0-60 mph
6.4s
Calculated
3.5s
Calculated
Fuel consumption
8.1L/100 km29mpg US34.9mpg UK
11.5L/100 km20.5mpg US24.6mpg UK
Fuel consumption city
11.7L/100 km20.1mpg US24.1mpg UK
16.6L/100 km14.2mpg US17.0mpg UK
Fuel consumption highway
6L/100 km39.2mpg US47.1mpg UK
8.5L/100 km27.7mpg US33.2mpg UK
Quarter mile
14.8s
Calculated
11.8s
Calculated
Power-to-weight
144hp/t108kW/t65hp/1000 lb
Calculated
354hp/t264kW/t161hp/1000 lb
Calculated
Torque-to-weight
179Nm/t120lb-ft/ton
Calculated
391Nm/t262lb-ft/ton
Calculated
Estimated range
654km407mi
Calculated
365km227mi
Calculated
Displacement
2,996cc183cu in
2,261cc138cu in
Length
4,360mm172in
3,300mm130in
Width
1,748mm69in
1,685mm66in
Height
1,411mm56in
1,140mm45in
Wheelbase
2,660mm105in
2,315mm91in
Front track
1,474mm58in
1,505mm59in
Rear track
1,507mm59in
1,465mm58in
Ground clearance
140mm6in
-
Trunk volume
260L
-
Max trunk volume
305L
-
Doors
2
2
Seats
4
2
Fuel tank
53L
42L
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 1 Series Convertible (E88) 125iCaterham CSR CSRPowerTorque
  • BMW 1 Series Convertible (E88) 125i: Power / Torque
  • Caterham CSR CSR: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW1 Series Convertible (E88)125i6,100 rpm2,500-4,250 rpm6,350 rpm
CaterhamCSRCSR7,000 rpm-7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW1 Series Convertible (E88)125iCaterhamCSRCSR
Acceleration checkpoints
0-60 mph
0-97 km/h
6.4 s
3.5 s
0-100 km/h
0-62 mph
6.8 s
3.7 s
0-200 km/h
0-124 mph
29.2 s
14.0 s
Top speed
238 km/h
148 mph
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Likely limited
Drag race simulation
60 ft
18 m
2.4 s
1.9 s
330 ft
101 m
6.4 s
5.1 s
1/8 mile
201 m
9.7 s
7.6 s
1000 ft
305 m
12.5 s
9.9 s
1/4 mile
402 m
14.8 s
11.8 s
Trap speed
1/4 mile
402 m
154 km/h
96 mph
189 km/h
117 mph

Power comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i
218 hp
163 kW
CaterhamCSRCSR
200 hp
149 kW

BMW 1 Series Convertible (E88) 125i has 18 hp more than Caterham CSR CSR.

The biggest power difference is between Caterham CSR CSR and BMW 1 Series Convertible (E88) 125i: 18 hp (13 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i
270 Nm
199 lb-ft
CaterhamCSRCSR
221 Nm
163 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i
1,510 kg
3,329 lb
CaterhamCSRCSR
565 kg
1,246 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i
238 km/h
148 mph
CaterhamCSRCSR
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i6.8 s
CaterhamCSRCSR3.7 s

Although BMW 1 Series Convertible (E88) 125i has more power, Caterham CSR CSR is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Caterham CSR CSR and BMW 1 Series Convertible (E88) 125i: 3.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
CaterhamCSRCSR
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

The biggest fuel consumption difference is between BMW 1 Series Convertible (E88) 125i and Caterham CSR CSR: 3.4 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
BMW1 Series Convertible (E88)125i
144 hp/t
108 kW/t
6.9 kg/hp
CaterhamCSRCSR
354 hp/t
264 kW/t
2.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)125i
654 km
407 mi
CaterhamCSRCSR
365 km
227 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW1 Series Convertible (E88)125i
218 hp
163 kW
6.8 s
238 km/h
148 mph
CaterhamCSRCSR
200 hp
149 kW
3.7 s
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 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
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
CaterhamCSRCSR
Power
200 hp
149 kW
0-100 km/h3.7 s
Top speed
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
3,300 mm
129.9 in
Height
1,140 mm
44.9 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
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
CaterhamCSRCSR
Power
200 hp
149 kW
0-100 km/h3.7 s
Top speed
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Caterham CSR CSR 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
BMW1 Series Convertible (E88)125i
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
6.8 s
CaterhamCSRCSR
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
3.7 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
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
CaterhamCSRCSR
354 hp/t
264 kW/t
2.8 kg/hp
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW1 Series Convertible (E88)125iCaterhamCSRCSR
Power
218 hp
163 kW
200 hp
149 kW
Torque
270 Nm
199 lb-ft
221 Nm
163 lb-ft
Acceleration
6.8 s
3.7 s
Top speed
238 km/h
148 mph
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Lightness
1,510 kg
3,329 lb
565 kg
1,246 lb
Fuel consumption
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
Practicality
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
Doors/seats
2 doors
2 seats
Trunk-
Length
3,300 mm
129.9 in
Height
1,140 mm
44.9 in
Range score
654 km
407 mi
365 km
227 mi
CO2 score
195 g/km
-
Trunk score
260 L
9.2 cu ft
-
Power-to-weight score
144 hp/t
108 kW/t
6.9 kg/hp
354 hp/t
264 kW/t
2.8 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 1 Series Convertible (E88) 125iCaterham CSR CSR
Consumption8.1 L/100 km29 mpg US34.9 mpg UK11.5 L/100 km20.5 mpg US24.6 mpg UK
Cost / 100 km14.17 LC100 km20.13 LC100 km
Cost / 100 mi22.81 LC100 mi32.39 LC100 mi
Annual fuel used1,215 L321 US gal267 UK gal1,725 L456 US gal379 UK gal
Annual fuel cost2,126 LC/year3,019 LC/year

Head-to-head comparisons

BMW 1 Series Convertible (E88) 125i

  • Has 18 hp more
  • Has 49 Nm more
  • Has 3 km/h (2 mph) higher top speed
  • Uses 3.4 L/100 km less fuel
  • Has 289 km (180 mi) more estimated range

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest

Caterham CSR CSR

  • Is 945 kg lighter
  • Is 3.1 s quicker from 0-100 km/h
  • Has 210 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 1 Series Convertible (E88) 125i
Caterham CSR CSR
Compare selected cars
2 vehicles selected

Popular comparisons

125i
125i
VS
BMW1 Series Convertible (E88)125ivsBMW1 Series Coupe (E82)125i
CSR
1.8 TBi
VS
CaterhamCSRCSRvsAlfa RomeoSpider (939)1.8 TBi
125i
330d
VS
BMW1 Series Convertible (E88)125ivsBMW3 Series Convertible (E93)330d
CSR
2.0 TFSI
VS
CaterhamCSRCSRvsAUDIA3 Cabriolet (8P)Facelift 20082.0 TFSI
125i
425d
VS
BMW1 Series Convertible (E88)125ivsBMW4 Series Convertible (F33)425d
CSR
JCW 1.6
VS
CaterhamCSRCSRvsMiniConvertible (R57)JCW 1.6
125i
630i
VS
BMW1 Series Convertible (E88)125ivsBMW6 Series Convertible (E64)Facelift 2007630i
CSR
2.0 TFSI
VS
CaterhamCSRCSRvsAUDIA5 Cabriolet (8F7)2.0 TFSI
125i
330Ci
VS
BMW1 Series Convertible (E88)125ivsBMW3 Series Convertible (E46)Facelift 2003330Ci
125i
630i
VS
BMW1 Series Convertible (E88)125ivsBMW6 Series Convertible (E64)630i
CSR
2.2
VS
CaterhamCSRCSRvsHondaS2000 (AP1)Facelift 20042.2
CSR
2.0 TFSI
VS
CaterhamCSRCSRvsAUDIA5 Cabriolet (8F7)Facelift 20112.0 TFSI
BMW 1 Series Convertible (E88) 125i vs Caterham CSR CSR - car comparison - FastVsFaster