Car comparison

BMW 6 Series (E63) · Facelift 2007 630ivsPorsche Cayman (987C) 2.7

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

New comparison

BMW 6 Series (E63) · Facelift 2007

630i

272 hp2996 ccGasolineRWDManualNaturally aspiratedCoupe2007-2010
VS

Porsche Cayman (987C)

2.7

245 hp2687 ccGasolineRWDManualNaturally aspiratedCoupe2006-2009

Comparison overview

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

Best choices

BMW 6 Series (E63) Facelift 2007 630i

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    272 hp
    203 kW
  • Highest torque
    320 Nm
    236 lb-ft
  • Lowest combined fuel consumption
    7.9 L/100 km
    29.8 mpg US
    35.8 mpg UK
  • Lowest city consumption
    11.2 L/100 km
    21.0 mpg US
    25.2 mpg UK
  • Lowest highway consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Best estimated range
    886 km
    551 mi
  • Largest trunk
    450 L
  • Best overall score
    58/100
  • Best performance score
    61/100
  • Best economy score
    86/100
  • Best practicality score
    53/100

Specification comparison

Specification comparison
ModelBMW6 Series (E63)Facelift 2007630iPorscheCayman (987C)2.7
Power
272hp203kW
245hp183kW
Torque
320Nm236lb-ft
273Nm201lb-ft
Curb weight
1,530kg3,373lb
1,300kg2,866lb
Gross weight
1,980kg4,365lb
1,620kg3,571lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
258 km/h
160 mph
To 99% top speed
84.9s99% target: 257 km/h / 160 mph
Calculated
93.6s99% target: 255 km/h / 159 mph
Calculated
0-100 km/h
6.2s
6.1s
0-200 km/h
22.4s
Calculated
23.7s
0-60 mph
5.9s
Calculated
5.8s
Calculated
Fuel consumption
7.9L/100 km29.8mpg US35.8mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
Fuel consumption city
11.2L/100 km21mpg US25.2mpg UK
13.8L/100 km17mpg US20.5mpg UK
Fuel consumption highway
6L/100 km39.2mpg US47.1mpg UK
6.8L/100 km34.6mpg US41.5mpg UK
Quarter mile
14.3s
Calculated
14.2s
Calculated
Power-to-weight
178hp/t133kW/t81hp/1000 lb
Calculated
188hp/t141kW/t85hp/1000 lb
Calculated
Torque-to-weight
209Nm/t140lb-ft/ton
Calculated
210Nm/t141lb-ft/ton
Calculated
Estimated range
886km551mi
Calculated
688km428mi
Calculated
Displacement
2,996cc183cu in
2,687cc164cu in
Length
4,820mm190in
4,341mm171in
Width
1,855mm73in
1,801mm71in
Height
1,374mm54in
1,305mm51in
Wheelbase
2,780mm109in
2,415mm95in
Front track
1,558mm61in
1,490mm59in
Rear track
1,596mm63in
1,534mm60in
Ground clearance-
121mm5in
Trunk volume
450L
260L
Doors
2
2
Seats
4
2
Fuel tank
70L
64L
CO2 emissions-
222g/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 (E63) Facelift 2007 630iPorsche Cayman (987C) 2.7PowerTorque
  • BMW 6 Series (E63) Facelift 2007 630i: Power / Torque
  • Porsche Cayman (987C) 2.7: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series (E63)Facelift 2007630i6,700 rpm2,750-3,000 rpm6,950 rpm
PorscheCayman (987C)2.76,500 rpm4,600-6,000 rpm7,300 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series (E63)Facelift 2007630iPorscheCayman (987C)2.7
Acceleration checkpoints
0-60 mph
0-97 km/h
5.9 s
5.8 s
0-100 km/h
0-62 mph
6.2 s
6.1 s
0-200 km/h
0-124 mph
22.4 s
23.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
258 km/h
160 mph
Drag race simulation
60 ft
18 m
2.4 s
2.3 s
330 ft
101 m
6.2 s
6.1 s
1/8 mile
201 m
9.4 s
9.3 s
1000 ft
305 m
12.0 s
12.0 s
1/4 mile
402 m
14.3 s
14.2 s
Trap speed
1/4 mile
402 m
164 km/h
102 mph
161 km/h
100 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)Facelift 2007630i
272 hp
203 kW
PorscheCayman (987C)2.7
245 hp
183 kW

BMW 6 Series (E63) Facelift 2007 630i has 27 hp more than Porsche Cayman (987C) 2.7.

The biggest power difference is between Porsche Cayman (987C) 2.7 and BMW 6 Series (E63) Facelift 2007 630i: 27 hp (20 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)Facelift 2007630i
320 Nm
236 lb-ft
PorscheCayman (987C)2.7
273 Nm
201 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)Facelift 2007630i
1,530 kg
3,373 lb
PorscheCayman (987C)2.7
1,300 kg
2,866 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 (E63)Facelift 2007630i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
PorscheCayman (987C)2.7
258 km/h
160 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW6 Series (E63)Facelift 2007630i6.2 s
PorscheCayman (987C)2.76.1 s

Although BMW 6 Series (E63) Facelift 2007 630i has more power, Porsche Cayman (987C) 2.7 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche Cayman (987C) 2.7 and BMW 6 Series (E63) Facelift 2007 630i: 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 (E63)Facelift 2007630i
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
PorscheCayman (987C)2.7
9.3 L/100 km
25.3 mpg US
30.4 mpg UK

The biggest fuel consumption difference is between BMW 6 Series (E63) Facelift 2007 630i and Porsche Cayman (987C) 2.7: 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
BMW6 Series (E63)Facelift 2007630i
178 hp/t
133 kW/t
5.6 kg/hp
PorscheCayman (987C)2.7
188 hp/t
141 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 (E63)Facelift 2007630i
886 km
551 mi
PorscheCayman (987C)2.7
688 km
428 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series (E63)Facelift 2007630i
272 hp
203 kW
6.2 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
PorscheCayman (987C)2.7
245 hp
183 kW
6.1 s
258 km/h
160 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 (E63)Facelift 2007630i
Power
272 hp
203 kW
0-100 km/h6.2 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
PorscheCayman (987C)2.7
Power
245 hp
183 kW
0-100 km/h6.1 s
Top speed
258 km/h
160 mph
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,341 mm
170.9 in
Height
1,305 mm
51.4 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 (E63)Facelift 2007630i
Power
272 hp
203 kW
0-100 km/h6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
PorscheCayman (987C)2.7
Power
245 hp
183 kW
0-100 km/h6.1 s
Top speed
258 km/h
160 mph
9.3 L/100 km
25.3 mpg US
30.4 mpg UK

BMW 6 Series (E63) Facelift 2007 630i 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 (E63)Facelift 2007630i
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
6.2 s
PorscheCayman (987C)2.7
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
6.1 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 (E63)Facelift 2007630i
178 hp/t
133 kW/t
5.6 kg/hp
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
PorscheCayman (987C)2.7
188 hp/t
141 kW/t
5.3 kg/hp
9.3 L/100 km
25.3 mpg US
30.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series (E63)Facelift 2007630iPorscheCayman (987C)2.7
Power
272 hp
203 kW
245 hp
183 kW
Torque
320 Nm
236 lb-ft
273 Nm
201 lb-ft
Acceleration
6.2 s
6.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
258 km/h
160 mph
Lightness
1,530 kg
3,373 lb
1,300 kg
2,866 lb
Fuel consumption
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Practicality
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
Doors/seats
2 doors
2 seats
Trunk
260 L
9.2 cu ft
Length
4,341 mm
170.9 in
Height
1,305 mm
51.4 in
Range score
886 km
551 mi
688 km
428 mi
CO2 score
-
222 g/km
Trunk score
450 L
15.9 cu ft
260 L
9.2 cu ft
Power-to-weight score
178 hp/t
133 kW/t
5.6 kg/hp
188 hp/t
141 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 (E63) Facelift 2007 630iPorsche Cayman (987C) 2.7
Consumption7.9 L/100 km29.8 mpg US35.8 mpg UK9.3 L/100 km25.3 mpg US30.4 mpg UK
Cost / 100 km13.83 LC100 km16.28 LC100 km
Cost / 100 mi22.25 LC100 mi26.19 LC100 mi
Annual fuel used1,185 L313 US gal261 UK gal1,395 L369 US gal307 UK gal
Annual fuel cost2,074 LC/year2,441 LC/year

Head-to-head comparisons

BMW 6 Series (E63) Facelift 2007 630i

  • Has 27 hp more
  • Has 47 Nm more
  • Has 2 km/h (1 mph) higher top speed
  • Uses 1.4 L/100 km less fuel
  • Has 198 km (123 mi) more estimated range
  • Has 190 L more trunk volume

Pros

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

Cons

  • Slowest 0-100 km/h
  • Heaviest

Porsche Cayman (987C) 2.7

  • Is 230 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 11 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
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series (E63) 630i
Porsche Cayman (987C) 2.7
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2 vehicles selected

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BMW 6 Series (E63) · Facelift 2007 630i vs Porsche Cayman (987C) 2.7 - car comparison - FastVsFaster