Car comparison

BMW 1 Series Convertible (E88) 135ivsBMW 6 Series Convertible (E64) · Facelift 2007 635d

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

New comparison

BMW 1 Series Convertible (E88)

135i

306 hp2979 ccGasolineRWDDual-clutchTurbochargedCabriolet / convertible2010-2011
VS

BMW 6 Series Convertible (E64) · Facelift 2007

635d

286 hp2993 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2007-2010

Comparison overview

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

Best choices

BMW 6 Series Convertible (E64) Facelift 2007 635d

  • Highest torque
    580 Nm
    428 lb-ft
  • Lowest combined fuel consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest city consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Lowest highway consumption
    5.8 L/100 km
    40.6 mpg US
    48.7 mpg UK
  • Best estimated range
    972 km
    604 mi
  • Largest trunk
    450 L
  • Best overall score
    60/100
  • Best economy score
    87/100
  • Best practicality score
    51/100

BMW 1 Series Convertible (E88) 135i

  • Quickest 0-100 km/h
    5.5 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    306 hp
    228 kW
  • Lightest
    1,600 kg
    3,527 lb
  • Best power-to-weight
    191 hp/t
    143 kW/t
    5.2 kg/hp
  • Best performance score
    65/100

Specification comparison

Specification comparison
ModelBMW1 Series Convertible (E88)135iBMW6 Series Convertible (E64)Facelift 2007635d
Power
306hp228kW
286hp213kW
Torque
400Nm295lb-ft
580Nm428lb-ft
Curb weight
1,600kg3,527lb
1,860kg4,101lb
Gross weight
2,040kg4,497lb
2,260kg4,982lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
77.4s99% target: 257 km/h / 160 mph
Calculated
97.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.5s
6.6s
0-200 km/h
20.2s
Calculated
24.8s
Calculated
0-60 mph
5.2s
Calculated
6.3s
Calculated
Fuel consumption
8.6L/100 km27.4mpg US32.8mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city
11.8L/100 km19.9mpg US23.9mpg UK
9.6L/100 km24.5mpg US29.4mpg UK
Fuel consumption highway
6.8L/100 km34.6mpg US41.5mpg UK
5.8L/100 km40.6mpg US48.7mpg UK
Quarter mile
13.6s
Calculated
14.6s
Calculated
Power-to-weight
191hp/t143kW/t87hp/1000 lb
Calculated
154hp/t115kW/t70hp/1000 lb
Calculated
Torque-to-weight
250Nm/t167lb-ft/ton
Calculated
312Nm/t209lb-ft/ton
Calculated
Estimated range
616km383mi
Calculated
972km604mi
Calculated
Displacement
2,979cc182cu in
2,993cc183cu in
Length
4,360mm172in
4,820mm190in
Width
1,748mm69in
1,855mm73in
Height
1,411mm56in
1,374mm54in
Wheelbase
2,660mm105in
2,780mm109in
Front track
1,474mm58in
1,558mm61in
Rear track
1,507mm59in
1,596mm63in
Ground clearance
140mm6in
-
Trunk volume
260L
450L
Max trunk volume
305L
-
Doors
2
2
Seats
4
4
Fuel tank
53L
70L
CO2 emissions-
190g/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) 135iBMW 6 Series Convertible (E64) Facelift 2007 635dPowerTorque
  • BMW 1 Series Convertible (E88) 135i: Power / Torque
  • BMW 6 Series Convertible (E64) Facelift 2007 635d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW1 Series Convertible (E88)135i5,800 rpm1,200-5,000 rpm6,050 rpm
BMW6 Series Convertible (E64)Facelift 2007635d4,400 rpm1,750-2,250 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW1 Series Convertible (E88)135iBMW6 Series Convertible (E64)Facelift 2007635d
Acceleration checkpoints
0-60 mph
0-97 km/h
5.2 s
6.3 s
0-100 km/h
0-62 mph
5.5 s
6.6 s
0-200 km/h
0-124 mph
20.2 s
24.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.4 s
330 ft
101 m
5.9 s
6.4 s
1/8 mile
201 m
8.9 s
9.6 s
1000 ft
305 m
11.5 s
12.3 s
1/4 mile
402 m
13.6 s
14.6 s
Trap speed
1/4 mile
402 m
169 km/h
105 mph
159 km/h
99 mph

Power comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)135i
306 hp
228 kW
BMW6 Series Convertible (E64)Facelift 2007635d
286 hp
213 kW

BMW 1 Series Convertible (E88) 135i has 20 hp more than BMW 6 Series Convertible (E64) Facelift 2007 635d.

The biggest power difference is between BMW 6 Series Convertible (E64) Facelift 2007 635d and BMW 1 Series Convertible (E88) 135i: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)135i
400 Nm
295 lb-ft
BMW6 Series Convertible (E64)Facelift 2007635d
580 Nm
428 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)135i
1,600 kg
3,527 lb
BMW6 Series Convertible (E64)Facelift 2007635d
1,860 kg
4,101 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)135i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series Convertible (E64)Facelift 2007635d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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)135i5.5 s
BMW6 Series Convertible (E64)Facelift 2007635d6.6 s

The biggest 0-100 km/h difference is between BMW 1 Series Convertible (E88) 135i and BMW 6 Series Convertible (E64) Facelift 2007 635d: 1.1 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)135i
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
BMW6 Series Convertible (E64)Facelift 2007635d
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Convertible (E64) Facelift 2007 635d and BMW 1 Series Convertible (E88) 135i: 1.4 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)135i
191 hp/t
143 kW/t
5.2 kg/hp
BMW6 Series Convertible (E64)Facelift 2007635d
154 hp/t
115 kW/t
6.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW1 Series Convertible (E88)135i
616 km
383 mi
BMW6 Series Convertible (E64)Facelift 2007635d
972 km
604 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW1 Series Convertible (E88)135i
306 hp
228 kW
5.5 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW6 Series Convertible (E64)Facelift 2007635d
286 hp
213 kW
6.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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)135i
Power
306 hp
228 kW
0-100 km/h5.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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
BMW6 Series Convertible (E64)Facelift 2007635d
Power
286 hp
213 kW
0-100 km/h6.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,374 mm
54.1 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)135i
Power
306 hp
228 kW
0-100 km/h5.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
BMW6 Series Convertible (E64)Facelift 2007635d
Power
286 hp
213 kW
0-100 km/h6.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

BMW 6 Series Convertible (E64) Facelift 2007 635d 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)135i
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
5.5 s
BMW6 Series Convertible (E64)Facelift 2007635d
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
6.6 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)135i
191 hp/t
143 kW/t
5.2 kg/hp
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
BMW6 Series Convertible (E64)Facelift 2007635d
154 hp/t
115 kW/t
6.5 kg/hp
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW1 Series Convertible (E88)135iBMW6 Series Convertible (E64)Facelift 2007635d
Power
306 hp
228 kW
286 hp
213 kW
Torque
400 Nm
295 lb-ft
580 Nm
428 lb-ft
Acceleration
5.5 s
6.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,600 kg
3,527 lb
1,860 kg
4,101 lb
Fuel consumption
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
7.2 L/100 km
32.7 mpg US
39.2 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
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,374 mm
54.1 in
Range score
616 km
383 mi
972 km
604 mi
CO2 score
-
190 g/km
Trunk score
260 L
9.2 cu ft
450 L
15.9 cu ft
Power-to-weight score
191 hp/t
143 kW/t
5.2 kg/hp
154 hp/t
115 kW/t
6.5 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) 135iBMW 6 Series Convertible (E64) Facelift 2007 635d
Consumption8.6 L/100 km27.4 mpg US32.8 mpg UK7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km15.05 LC100 km12.60 LC100 km
Cost / 100 mi24.22 LC100 mi20.28 LC100 mi
Annual fuel used1,290 L341 US gal284 UK gal1,080 L285 US gal238 UK gal
Annual fuel cost2,258 LC/year1,890 LC/year

Head-to-head comparisons

BMW 1 Series Convertible (E88) 135i

  • Has 20 hp more
  • Is 260 kg lighter
  • Is 1.1 s quicker from 0-100 km/h
  • Has 37 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

BMW 6 Series Convertible (E64) Facelift 2007 635d

  • Has 180 Nm more
  • Uses 1.4 L/100 km less fuel
  • Has 356 km (221 mi) more estimated range
  • Has 190 L more trunk volume

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 1 Series Convertible (E88) 135i
BMW 6 Series Convertible (E64) 635d
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2 vehicles selected

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BMW 1 Series Convertible (E88) 135i vs BMW 6 Series Convertible (E64) · Facelift 2007 635d - car comparison - FastVsFaster