Car comparison

BMW Z8 (E52) 4.9vsBMW M6 Convertible (E64) 5.0 V10

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

New comparison

BMW Z8 (E52)

4.9

400 hp4941 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2000-2005
VS

BMW M6 Convertible (E64)

5.0 V10

507 hp4999 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2006-2007

Comparison overview

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

Best choices

BMW Z8 (E52) 4.9

  • Quickest 0-100 km/h
    4.7 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,660 kg
    3,660 lb
  • Lowest combined fuel consumption
    14.5 L/100 km
    16.2 mpg US
    19.5 mpg UK
  • Lowest city consumption
    21.1 L/100 km
    11.1 mpg US
    13.4 mpg UK
  • Lowest highway consumption
    10.6 L/100 km
    22.2 mpg US
    26.6 mpg UK
  • Best estimated range
    503 km
    313 mi
  • Best economy score
    68/100

BMW M6 Convertible (E64) 5.0 V10

  • Most powerful
    507 hp
    378 kW
  • Highest torque
    520 Nm
    384 lb-ft
  • Best power-to-weight
    263 hp/t
    196 kW/t
    3.8 kg/hp
  • Largest trunk
    300 L
  • Best overall score
    67/100
  • Best performance score
    78/100
  • Best practicality score
    45/100

Specification comparison

Specification comparison
ModelBMWZ8 (E52)4.9BMWM6 Convertible (E64)5.0 V10
Power
400hp298kW
507hp378kW
Torque
500Nm369lb-ft
520Nm384lb-ft
Curb weight
1,660kg3,660lb
1,930kg4,255lb
Gross weight
1,900kg4,189lb
2,380kg5,247lb
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
59.2s99% target: 257 km/h / 160 mph
Calculated
62.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.7s
4.8s
0-200 km/h
16.3s
Calculated
17.0s
Calculated
0-60 mph
4.5s
Calculated
4.6s
Calculated
Fuel consumption
14.5L/100 km16.2mpg US19.5mpg UK
15.2L/100 km15.5mpg US18.6mpg UK
Fuel consumption city
21.1L/100 km11.1mpg US13.4mpg UK
22.8L/100 km10.3mpg US12.4mpg UK
Fuel consumption highway
10.6L/100 km22.2mpg US26.6mpg UK
10.7L/100 km22mpg US26.4mpg UK
Quarter mile
12.8s
Calculated
12.9s
Calculated
Power-to-weight
241hp/t180kW/t109hp/1000 lb
Calculated
263hp/t196kW/t119hp/1000 lb
Calculated
Torque-to-weight
301Nm/t202lb-ft/ton
Calculated
269Nm/t180lb-ft/ton
Calculated
Estimated range
503km313mi
Calculated
461km286mi
Calculated
Displacement
4,941cc302cu in
4,999cc305cu in
Length
4,400mm173in
4,871mm192in
Width
1,830mm72in
1,855mm73in
Height
1,317mm52in
1,377mm54in
Wheelbase
2,505mm99in
2,781mm109in
Front track
1,550mm61in
1,567mm62in
Rear track
1,570mm62in
1,584mm62in
Trunk volume
203L
300L
Max trunk volume-
350L
Doors
2
2
Seats
2
4
Fuel tank
73L
70L

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 Z8 (E52) 4.9BMW M6 Convertible (E64) 5.0 V10PowerTorque
  • BMW Z8 (E52) 4.9: Power / Torque
  • BMW M6 Convertible (E64) 5.0 V10: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWZ8 (E52)4.96,600 rpm3,800 rpm6,850 rpm
BMWM6 Convertible (E64)5.0 V107,750 rpm6,100 rpm8,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWZ8 (E52)4.9BMWM6 Convertible (E64)5.0 V10
Acceleration checkpoints
0-60 mph
0-97 km/h
4.5 s
4.6 s
0-100 km/h
0-62 mph
4.7 s
4.8 s
0-200 km/h
0-124 mph
16.3 s
17.0 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
2.1 s
2.1 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.4 s
8.4 s
1000 ft
305 m
10.8 s
10.9 s
1/4 mile
402 m
12.8 s
12.9 s
Trap speed
1/4 mile
402 m
180 km/h
112 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
BMWZ8 (E52)4.9
400 hp
298 kW
BMWM6 Convertible (E64)5.0 V10
507 hp
378 kW

BMW M6 Convertible (E64) 5.0 V10 has 107 hp more than BMW Z8 (E52) 4.9.

The biggest power difference is between BMW Z8 (E52) 4.9 and BMW M6 Convertible (E64) 5.0 V10: 107 hp (80 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWZ8 (E52)4.9
500 Nm
369 lb-ft
BMWM6 Convertible (E64)5.0 V10
520 Nm
384 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWZ8 (E52)4.9
1,660 kg
3,660 lb
BMWM6 Convertible (E64)5.0 V10
1,930 kg
4,255 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMWZ8 (E52)4.9
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWM6 Convertible (E64)5.0 V10
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
BMWZ8 (E52)4.94.7 s
BMWM6 Convertible (E64)5.0 V104.8 s

Although BMW M6 Convertible (E64) 5.0 V10 has more power, BMW Z8 (E52) 4.9 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW Z8 (E52) 4.9 and BMW M6 Convertible (E64) 5.0 V10: 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
BMWZ8 (E52)4.9
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
BMWM6 Convertible (E64)5.0 V10
15.2 L/100 km
15.5 mpg US
18.6 mpg UK

The biggest fuel consumption difference is between BMW Z8 (E52) 4.9 and BMW M6 Convertible (E64) 5.0 V10: 0.7 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
BMWZ8 (E52)4.9
241 hp/t
180 kW/t
4.1 kg/hp
BMWM6 Convertible (E64)5.0 V10
263 hp/t
196 kW/t
3.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWZ8 (E52)4.9
503 km
313 mi
BMWM6 Convertible (E64)5.0 V10
461 km
286 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWZ8 (E52)4.9
400 hp
298 kW
4.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWM6 Convertible (E64)5.0 V10
507 hp
378 kW
4.8 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
BMWZ8 (E52)4.9
Power
400 hp
298 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
203 L
7.2 cu ft
Length
4,400 mm
173.2 in
Height
1,317 mm
51.9 in
BMWM6 Convertible (E64)5.0 V10
Power
507 hp
378 kW
0-100 km/h4.8 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
4,871 mm
191.8 in
Height
1,377 mm
54.2 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
BMWZ8 (E52)4.9
Power
400 hp
298 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
BMWM6 Convertible (E64)5.0 V10
Power
507 hp
378 kW
0-100 km/h4.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
15.2 L/100 km
15.5 mpg US
18.6 mpg UK

BMW M6 Convertible (E64) 5.0 V10 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
BMWZ8 (E52)4.9
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
4.7 s
BMWM6 Convertible (E64)5.0 V10
15.2 L/100 km
15.5 mpg US
18.6 mpg UK
4.8 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
BMWZ8 (E52)4.9
241 hp/t
180 kW/t
4.2 kg/hp
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
BMWM6 Convertible (E64)5.0 V10
263 hp/t
196 kW/t
3.8 kg/hp
15.2 L/100 km
15.5 mpg US
18.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWZ8 (E52)4.9BMWM6 Convertible (E64)5.0 V10
Power
400 hp
298 kW
507 hp
378 kW
Torque
500 Nm
369 lb-ft
520 Nm
384 lb-ft
Acceleration
4.7 s
4.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,660 kg
3,660 lb
1,930 kg
4,255 lb
Fuel consumption
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
15.2 L/100 km
15.5 mpg US
18.6 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
203 L
7.2 cu ft
Length
4,400 mm
173.2 in
Height
1,317 mm
51.9 in
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,871 mm
191.8 in
Height
1,377 mm
54.2 in
Range score
503 km
313 mi
461 km
286 mi
Trunk score
203 L
7.2 cu ft
300 L
10.6 cu ft
Power-to-weight score
241 hp/t
180 kW/t
4.2 kg/hp
263 hp/t
196 kW/t
3.8 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 Z8 (E52) 4.9BMW M6 Convertible (E64) 5.0 V10
Consumption14.5 L/100 km16.2 mpg US19.5 mpg UK15.2 L/100 km15.5 mpg US18.6 mpg UK
Cost / 100 km25.38 LC100 km26.60 LC100 km
Cost / 100 mi40.84 LC100 mi42.81 LC100 mi
Annual fuel used2,175 L575 US gal478 UK gal2,280 L602 US gal502 UK gal
Annual fuel cost3,806 LC/year3,990 LC/year

Head-to-head comparisons

BMW Z8 (E52) 4.9

  • Is 270 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.7 L/100 km less fuel
  • Has 43 km (27 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Lowest power
  • Smallest trunk

BMW M6 Convertible (E64) 5.0 V10

  • Has 107 hp more
  • Has 20 Nm more
  • Has 22 hp/t better power-to-weight
  • Has 97 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW Z8 (E52) 4.9
BMW M6 Convertible (E64) 5.0 V10
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