Car comparison

BMW 6 Series Convertible (E64) · Facelift 2007 650ivsBMW 1 Series Convertible (E88) 135i

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

New comparison

BMW 6 Series Convertible (E64) · Facelift 2007

650i

367 hp4799 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2007-2010
VS

BMW 1 Series Convertible (E88)

135i

306 hp2979 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2008-2010

Comparison overview

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

Best choices

BMW 6 Series Convertible (E64) Facelift 2007 650i

  • Quickest 0-100 km/h
    5.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    367 hp
    274 kW
  • Highest torque
    490 Nm
    361 lb-ft
  • Best power-to-weight
    197 hp/t
    147 kW/t
    5.1 kg/hp
  • Best estimated range
    642 km
    399 mi
  • Largest trunk
    300 L
  • Best overall score
    61/100
  • Best performance score
    69/100
  • Best practicality score
    45/100

BMW 1 Series Convertible (E88) 135i

  • Lightest
    1,610 kg
    3,549 lb
  • Lowest combined fuel consumption
    9.4 L/100 km
    25.0 mpg US
    30.1 mpg UK
  • Lowest city consumption
    13.5 L/100 km
    17.4 mpg US
    20.9 mpg UK
  • Lowest highway consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best economy score
    82/100

Specification comparison

Specification comparison
ModelBMW6 Series Convertible (E64)Facelift 2007650iBMW1 Series Convertible (E88)135i
Power
367hp274kW
306hp228kW
Torque
490Nm361lb-ft
400Nm295lb-ft
Curb weight
1,860kg4,101lb
1,610kg3,549lb
Gross weight
2,260kg4,982lb
2,050kg4,519lb
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
77.8s99% target: 257 km/h / 160 mph
Calculated
80.5s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.6s
5.7s
0-200 km/h
20.4s
Calculated
20.9s
Calculated
0-60 mph
5.3s
Calculated
5.4s
Calculated
Fuel consumption
10.9L/100 km21.6mpg US25.9mpg UK
9.4L/100 km25mpg US30.1mpg UK
Fuel consumption city
16.5L/100 km14.3mpg US17.1mpg UK
13.5L/100 km17.4mpg US20.9mpg UK
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
7L/100 km33.6mpg US40.4mpg UK
Quarter mile
13.7s
Calculated
13.8s
Calculated
Power-to-weight
197hp/t147kW/t89hp/1000 lb
Calculated
190hp/t142kW/t86hp/1000 lb
Calculated
Torque-to-weight
263Nm/t176lb-ft/ton
Calculated
248Nm/t166lb-ft/ton
Calculated
Estimated range
642km399mi
Calculated
564km350mi
Calculated
Displacement
4,799cc293cu in
2,979cc182cu in
Length
4,820mm190in
4,360mm172in
Width
1,855mm73in
1,748mm69in
Height
1,374mm54in
1,411mm56in
Wheelbase
2,780mm109in
2,660mm105in
Front track
1,558mm61in
1,474mm58in
Rear track
1,596mm63in
1,507mm59in
Ground clearance-
140mm6in
Trunk volume
300L
260L
Max trunk volume
350L
305L
Doors
2
2
Seats
4
4
Fuel tank
70L
53L
CO2 emissions
258g/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 6 Series Convertible (E64) Facelift 2007 650iBMW 1 Series Convertible (E88) 135iPowerTorque
  • BMW 6 Series Convertible (E64) Facelift 2007 650i: Power / Torque
  • BMW 1 Series Convertible (E88) 135i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series Convertible (E64)Facelift 2007650i6,300 rpm3,400 rpm6,550 rpm
BMW1 Series Convertible (E88)135i5,800 rpm1,300-5,000 rpm6,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series Convertible (E64)Facelift 2007650iBMW1 Series Convertible (E88)135i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
5.4 s
0-100 km/h
0-62 mph
5.6 s
5.7 s
0-200 km/h
0-124 mph
20.4 s
20.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.0 s
6.0 s
1/8 mile
201 m
9.0 s
9.0 s
1000 ft
305 m
11.6 s
11.6 s
1/4 mile
402 m
13.7 s
13.8 s
Trap speed
1/4 mile
402 m
169 km/h
105 mph
167 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)Facelift 2007650i
367 hp
274 kW
BMW1 Series Convertible (E88)135i
306 hp
228 kW

BMW 6 Series Convertible (E64) Facelift 2007 650i has 61 hp more than BMW 1 Series Convertible (E88) 135i.

The biggest power difference is between BMW 1 Series Convertible (E88) 135i and BMW 6 Series Convertible (E64) Facelift 2007 650i: 61 hp (45 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)Facelift 2007650i
490 Nm
361 lb-ft
BMW1 Series Convertible (E88)135i
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)Facelift 2007650i
1,860 kg
4,101 lb
BMW1 Series Convertible (E88)135i
1,610 kg
3,549 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)Facelift 2007650i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW1 Series Convertible (E88)135i
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
BMW6 Series Convertible (E64)Facelift 2007650i5.6 s
BMW1 Series Convertible (E88)135i5.7 s

The biggest 0-100 km/h difference is between BMW 6 Series Convertible (E64) Facelift 2007 650i and BMW 1 Series Convertible (E88) 135i: 0.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)Facelift 2007650i
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
BMW1 Series Convertible (E88)135i
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

The biggest fuel consumption difference is between BMW 1 Series Convertible (E88) 135i and BMW 6 Series Convertible (E64) Facelift 2007 650i: 1.5 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
BMW6 Series Convertible (E64)Facelift 2007650i
197 hp/t
147 kW/t
5.1 kg/hp
BMW1 Series Convertible (E88)135i
190 hp/t
142 kW/t
5.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)Facelift 2007650i
642 km
399 mi
BMW1 Series Convertible (E88)135i
564 km
350 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series Convertible (E64)Facelift 2007650i
367 hp
274 kW
5.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW1 Series Convertible (E88)135i
306 hp
228 kW
5.7 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
BMW6 Series Convertible (E64)Facelift 2007650i
Power
367 hp
274 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,820 mm
189.8 in
Height
1,374 mm
54.1 in
BMW1 Series Convertible (E88)135i
Power
306 hp
228 kW
0-100 km/h5.7 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

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
BMW6 Series Convertible (E64)Facelift 2007650i
Power
367 hp
274 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
BMW1 Series Convertible (E88)135i
Power
306 hp
228 kW
0-100 km/h5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

BMW 6 Series Convertible (E64) Facelift 2007 650i 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
BMW6 Series Convertible (E64)Facelift 2007650i
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
5.6 s
BMW1 Series Convertible (E88)135i
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.7 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
BMW6 Series Convertible (E64)Facelift 2007650i
197 hp/t
147 kW/t
5.1 kg/hp
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
BMW1 Series Convertible (E88)135i
190 hp/t
142 kW/t
5.3 kg/hp
9.4 L/100 km
25.0 mpg US
30.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series Convertible (E64)Facelift 2007650iBMW1 Series Convertible (E88)135i
Power
367 hp
274 kW
306 hp
228 kW
Torque
490 Nm
361 lb-ft
400 Nm
295 lb-ft
Acceleration
5.6 s
5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,860 kg
4,101 lb
1,610 kg
3,549 lb
Fuel consumption
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,820 mm
189.8 in
Height
1,374 mm
54.1 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
642 km
399 mi
564 km
350 mi
CO2 score
258 g/km
-
Trunk score
300 L
10.6 cu ft
260 L
9.2 cu ft
Power-to-weight score
197 hp/t
147 kW/t
5.1 kg/hp
190 hp/t
142 kW/t
5.3 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
VehicleBMW 6 Series Convertible (E64) Facelift 2007 650iBMW 1 Series Convertible (E88) 135i
Consumption10.9 L/100 km21.6 mpg US25.9 mpg UK9.4 L/100 km25 mpg US30.1 mpg UK
Cost / 100 km19.08 LC100 km16.45 LC100 km
Cost / 100 mi30.70 LC100 mi26.47 LC100 mi
Annual fuel used1,635 L432 US gal360 UK gal1,410 L372 US gal310 UK gal
Annual fuel cost2,861 LC/year2,468 LC/year

Head-to-head comparisons

BMW 6 Series Convertible (E64) Facelift 2007 650i

  • Has 61 hp more
  • Has 90 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Has 7 hp/t better power-to-weight
  • Has 78 km (49 mi) more estimated range
  • Has 40 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series Convertible (E64) 650i
BMW 1 Series Convertible (E88) 135i
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2 vehicles selected

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BMW 6 Series Convertible (E64) · Facelift 2007 650i vs BMW 1 Series Convertible (E88) 135i - car comparison - FastVsFaster