Car comparison

BMW 6 Series Convertible (E64) 645CivsChevrolet Camaro IV · Facelift 1998 Z28 5.7 i V8

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

New comparison

BMW 6 Series Convertible (E64)

645Ci

333 hp4398 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2003-2005
VS

Chevrolet Camaro IV · Facelift 1998

Z28 5.7 i V8

310 hp5665 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2001-2002

Comparison overview

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

Best choices

BMW 6 Series Convertible (E64) 645Ci

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    333 hp
    248 kW
  • Lowest highway consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Best estimated range
    543 km
    337 mi
  • Largest trunk
    300 L
  • Best overall score
    59/100
  • Best performance score
    65/100
  • Best practicality score
    45/100

Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8

  • Quickest 0-100 km/h
    6.0 s
  • Highest torque
    461 Nm
    340 lb-ft
  • Lightest
    1,605 kg
    3,538 lb
  • Best power-to-weight
    193 hp/t
    144 kW/t
    5.2 kg/hp
  • Lowest combined fuel consumption
    12.4 L/100 km
    19.0 mpg US
    22.8 mpg UK
  • Lowest city consumption
    14.7 L/100 km
    16.0 mpg US
    19.2 mpg UK
  • Best economy score
    74/100

Specification comparison

Specification comparison
ModelBMW6 Series Convertible (E64)645CiChevroletCamaro IVFacelift 1998Z28 5.7 i V8
Power
333hp248kW
310hp231kW
Torque
450Nm332lb-ft
461Nm340lb-ft
Curb weight
1,815kg4,001lb
1,605kg3,538lb
Gross weight
2,215kg4,883lb
1,930kg4,255lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
257 km/h
160 mph
To 99% top speed
87.9s99% target: 257 km/h / 160 mph
Calculated
86.8s99% target: 254 km/h / 158 mph
Calculated
0-100 km/h
6.1s
6.0s
0-200 km/h
22.6s
Calculated
22.8s
Calculated
0-60 mph
5.8s
Calculated
5.7s
Calculated
Fuel consumption
12.9L/100 km18.2mpg US21.9mpg UK
12.4L/100 km19mpg US22.8mpg UK
Fuel consumption city
18.5L/100 km12.7mpg US15.3mpg UK
14.7L/100 km16mpg US19.2mpg UK
Fuel consumption highway
9.6L/100 km24.5mpg US29.4mpg UK
10.2L/100 km23.1mpg US27.7mpg UK
Quarter mile
14.2s
Calculated
14.1s
Calculated
Power-to-weight
183hp/t137kW/t83hp/1000 lb
Calculated
193hp/t144kW/t88hp/1000 lb
Calculated
Torque-to-weight
248Nm/t166lb-ft/ton
Calculated
287Nm/t192lb-ft/ton
Calculated
Estimated range
543km337mi
Calculated
512km318mi
Calculated
Displacement
4,398cc268cu in
5,665cc346cu in
Length
4,820mm190in
4,914mm193in
Width
1,855mm73in
1,882mm74in
Height
1,373mm54in
1,315mm52in
Wheelbase
2,780mm109in
2,568mm101in
Front track
1,558mm61in
1,542mm61in
Rear track
1,592mm63in
1,540mm61in
Trunk volume
300L
215L
Max trunk volume
350L
930L
Doors
2
2
Seats
4
4
Fuel tank
70L
64L
CO2 emissions-
293g/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) 645CiChevrolet Camaro IV Facelift 1998 Z28 5.7 i V8PowerTorque
  • BMW 6 Series Convertible (E64) 645Ci: Power / Torque
  • Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series Convertible (E64)645Ci6,100 rpm3,600 rpm6,350 rpm
ChevroletCamaro IVFacelift 1998Z28 5.7 i V85,200 rpm4,000 rpm5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series Convertible (E64)645CiChevroletCamaro IVFacelift 1998Z28 5.7 i V8
Acceleration checkpoints
0-60 mph
0-97 km/h
5.8 s
5.7 s
0-100 km/h
0-62 mph
6.1 s
6.0 s
0-200 km/h
0-124 mph
22.6 s
22.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
257 km/h
160 mph
Drag race simulation
60 ft
18 m
2.3 s
2.3 s
330 ft
101 m
6.2 s
6.1 s
1/8 mile
201 m
9.3 s
9.2 s
1000 ft
305 m
12.0 s
11.9 s
1/4 mile
402 m
14.2 s
14.1 s
Trap speed
1/4 mile
402 m
163 km/h
101 mph
163 km/h
101 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)645Ci
333 hp
248 kW
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
310 hp
231 kW

BMW 6 Series Convertible (E64) 645Ci has 23 hp more than Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8.

The biggest power difference is between Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8 and BMW 6 Series Convertible (E64) 645Ci: 23 hp (17 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)645Ci
450 Nm
332 lb-ft
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
461 Nm
340 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)645Ci
1,815 kg
4,001 lb
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
1,605 kg
3,538 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)645Ci
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
257 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 Convertible (E64)645Ci6.1 s
ChevroletCamaro IVFacelift 1998Z28 5.7 i V86.0 s

Although BMW 6 Series Convertible (E64) 645Ci has more power, Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8 and BMW 6 Series Convertible (E64) 645Ci: 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)645Ci
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
12.4 L/100 km
19.0 mpg US
22.8 mpg UK

The biggest fuel consumption difference is between Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8 and BMW 6 Series Convertible (E64) 645Ci: 0.5 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)645Ci
183 hp/t
137 kW/t
5.5 kg/hp
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
193 hp/t
144 kW/t
5.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series Convertible (E64)645Ci
543 km
337 mi
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
512 km
318 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series Convertible (E64)645Ci
333 hp
248 kW
6.1 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
310 hp
231 kW
6.0 s
257 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 Convertible (E64)645Ci
Power
333 hp
248 kW
0-100 km/h6.1 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
1,373 mm
54.1 in
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
Power
310 hp
231 kW
0-100 km/h6.0 s
Top speed
257 km/h
160 mph
Doors/seats
2 doors
4 seats
Trunk
215 L
7.6 cu ft
Length
4,914 mm
193.5 in
Height
1,315 mm
51.8 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)645Ci
Power
333 hp
248 kW
0-100 km/h6.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
Power
310 hp
231 kW
0-100 km/h6.0 s
Top speed
257 km/h
160 mph
12.4 L/100 km
19.0 mpg US
22.8 mpg UK

Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8 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)645Ci
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
6.1 s
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
6.0 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)645Ci
183 hp/t
137 kW/t
5.5 kg/hp
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
ChevroletCamaro IVFacelift 1998Z28 5.7 i V8
193 hp/t
144 kW/t
5.2 kg/hp
12.4 L/100 km
19.0 mpg US
22.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series Convertible (E64)645CiChevroletCamaro IVFacelift 1998Z28 5.7 i V8
Power
333 hp
248 kW
310 hp
231 kW
Torque
450 Nm
332 lb-ft
461 Nm
340 lb-ft
Acceleration
6.1 s
6.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
257 km/h
160 mph
Lightness
1,815 kg
4,001 lb
1,605 kg
3,538 lb
Fuel consumption
12.9 L/100 km
18.2 mpg US
21.9 mpg UK
12.4 L/100 km
19.0 mpg US
22.8 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,820 mm
189.8 in
Height
1,373 mm
54.1 in
Doors/seats
2 doors
4 seats
Trunk
215 L
7.6 cu ft
Length
4,914 mm
193.5 in
Height
1,315 mm
51.8 in
Range score
543 km
337 mi
512 km
318 mi
CO2 score
-
293 g/km
Trunk score
300 L
10.6 cu ft
215 L
7.6 cu ft
Power-to-weight score
183 hp/t
137 kW/t
5.5 kg/hp
193 hp/t
144 kW/t
5.2 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) 645CiChevrolet Camaro IV Facelift 1998 Z28 5.7 i V8
Consumption12.9 L/100 km18.2 mpg US21.9 mpg UK12.4 L/100 km19 mpg US22.8 mpg UK
Cost / 100 km22.58 LC100 km21.70 LC100 km
Cost / 100 mi36.33 LC100 mi34.92 LC100 mi
Annual fuel used1,935 L511 US gal426 UK gal1,860 L491 US gal409 UK gal
Annual fuel cost3,386 LC/year3,255 LC/year

Head-to-head comparisons

BMW 6 Series Convertible (E64) 645Ci

  • Has 23 hp more
  • Has 3 km/h (2 mph) higher top speed
  • Has 31 km (19 mi) more estimated range
  • Has 85 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Best estimated range
  • Largest trunk

Cons

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

Chevrolet Camaro IV Facelift 1998 Z28 5.7 i V8

  • Has 11 Nm more
  • Is 210 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.5 L/100 km less fuel
  • Has 10 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio

Cons

  • Lowest power
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series Convertible (E64) 645Ci
Chevrolet Camaro IV Z28 5.7 i V8
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2 vehicles selected

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