Car comparison

BMW 7 Series (E38) · Facelift 1998 750ivsOpel Omega B · Facelift 1999 5.7i V8

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

New comparison

BMW 7 Series (E38) · Facelift 1998

750i

326 hp5379 ccGasolineRWDAutomaticNaturally aspiratedSedan1998-2001
VS

Opel Omega B · Facelift 1999

5.7i V8

310 hp5665 ccGasolineRWDAutomaticNaturally aspiratedSedan2000-2001

Comparison overview

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

Best choices

BMW 7 Series (E38) Facelift 1998 750i

  • Quickest 0-100 km/h
    6.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    326 hp
    243 kW
  • Highest torque
    490 Nm
    361 lb-ft
  • Lowest combined fuel consumption
    13.6 L/100 km
    17.3 mpg US
    20.8 mpg UK
  • Best estimated range
    699 km
    434 mi
  • Best overall score
    67/100
  • Best performance score
    63/100
  • Best economy score
    70/100

Opel Omega B Facelift 1999 5.7i V8

  • Lightest
    1,650 kg
    3,638 lb
  • Best power-to-weight
    188 hp/t
    140 kW/t
    5.3 kg/hp
  • Lowest city consumption
    18.0 L/100 km
    13.1 mpg US
    15.7 mpg UK
  • Lowest highway consumption
    10.0 L/100 km
    23.5 mpg US
    28.2 mpg UK
  • Largest trunk
    530 L
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelBMW7 Series (E38)Facelift 1998750iOpelOmega BFacelift 19995.7i V8
Power
326hp243kW
310hp231kW
Torque
490Nm361lb-ft
450Nm332lb-ft
Curb weight
1,960kg4,321lb
1,650kg3,638lb
Gross weight
2,495kg5,501lb
2,195kg4,839lb
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
71.2s99% target: 257 km/h / 160 mph
Calculated
70.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
6.6s
7.0s
0-200 km/h
21.2s
Calculated
21.8s
Calculated
0-60 mph
6.3s
Calculated
6.7s
Calculated
Fuel consumption
13.6L/100 km17.3mpg US20.8mpg UK
14L/100 km16.8mpg US20.2mpg UK
Fuel consumption city
19.6L/100 km12mpg US14.4mpg UK
18L/100 km13.1mpg US15.7mpg UK
Fuel consumption highway
10.1L/100 km23.3mpg US28.0mpg UK
10L/100 km23.5mpg US28.2mpg UK
Quarter mile
14.5s
Calculated
14.9s
Calculated
Power-to-weight
166hp/t124kW/t75hp/1000 lb
Calculated
188hp/t140kW/t85hp/1000 lb
Calculated
Torque-to-weight
250Nm/t167lb-ft/ton
Calculated
273Nm/t182lb-ft/ton
Calculated
Estimated range
699km434mi
Calculated
536km333mi
Calculated
Displacement
5,379cc328cu in
5,665cc346cu in
Length
4,984mm196in
4,898mm193in
Width
1,862mm73in
1,775mm70in
Height
1,425mm56in
1,450mm57in
Wheelbase
2,930mm115in
2,730mm107in
Front track
1,552mm61in
1,514mm60in
Rear track
1,568mm62in
1,528mm60in
Ground clearance-
140mm6in
Trunk volume
500L
530L
Max trunk volume-
830L
Doors
4
4
Seats
5
5
Fuel tank
95L
75L

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 7 Series (E38) Facelift 1998 750iOpel Omega B Facelift 1999 5.7i V8PowerTorque
  • BMW 7 Series (E38) Facelift 1998 750i: Power / Torque
  • Opel Omega B Facelift 1999 5.7i V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW7 Series (E38)Facelift 1998750i5,000 rpm3,900 rpm5,250 rpm
OpelOmega BFacelift 19995.7i V85,600 rpm4,400 rpm5,850 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW7 Series (E38)Facelift 1998750iOpelOmega BFacelift 19995.7i V8
Acceleration checkpoints
0-60 mph
0-97 km/h
6.3 s
6.7 s
0-100 km/h
0-62 mph
6.6 s
7.0 s
0-200 km/h
0-124 mph
21.2 s
21.8 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
Likely limited
Drag race simulation
60 ft
18 m
2.6 s
2.7 s
330 ft
101 m
6.6 s
6.8 s
1/8 mile
201 m
9.7 s
10.0 s
1000 ft
305 m
12.3 s
12.6 s
1/4 mile
402 m
14.5 s
14.9 s
Trap speed
1/4 mile
402 m
167 km/h
104 mph
165 km/h
103 mph

Power comparison

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

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
326 hp
243 kW
OpelOmega BFacelift 19995.7i V8
310 hp
231 kW

BMW 7 Series (E38) Facelift 1998 750i has 16 hp more than Opel Omega B Facelift 1999 5.7i V8.

The biggest power difference is between Opel Omega B Facelift 1999 5.7i V8 and BMW 7 Series (E38) Facelift 1998 750i: 16 hp (12 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
490 Nm
361 lb-ft
OpelOmega BFacelift 19995.7i V8
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
1,960 kg
4,321 lb
OpelOmega BFacelift 19995.7i V8
1,650 kg
3,638 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
OpelOmega BFacelift 19995.7i V8
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
BMW7 Series (E38)Facelift 1998750i6.6 s
OpelOmega BFacelift 19995.7i V87.0 s

The biggest 0-100 km/h difference is between BMW 7 Series (E38) Facelift 1998 750i and Opel Omega B Facelift 1999 5.7i V8: 0.4 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
OpelOmega BFacelift 19995.7i V8
14.0 L/100 km
16.8 mpg US
20.2 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
166 hp/t
124 kW/t
6.0 kg/hp
OpelOmega BFacelift 19995.7i V8
188 hp/t
140 kW/t
5.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW7 Series (E38)Facelift 1998750i
699 km
434 mi
OpelOmega BFacelift 19995.7i V8
536 km
333 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW7 Series (E38)Facelift 1998750i
326 hp
243 kW
6.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
OpelOmega BFacelift 19995.7i V8
310 hp
231 kW
7.0 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
BMW7 Series (E38)Facelift 1998750i
Power
326 hp
243 kW
0-100 km/h6.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,984 mm
196.2 in
Height
1,425 mm
56.1 in
OpelOmega BFacelift 19995.7i V8
Power
310 hp
231 kW
0-100 km/h7.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,898 mm
192.8 in
Height
1,450 mm
57.1 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
BMW7 Series (E38)Facelift 1998750i
Power
326 hp
243 kW
0-100 km/h6.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
OpelOmega BFacelift 19995.7i V8
Power
310 hp
231 kW
0-100 km/h7.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
14.0 L/100 km
16.8 mpg US
20.2 mpg UK

BMW 7 Series (E38) Facelift 1998 750i 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
BMW7 Series (E38)Facelift 1998750i
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
6.6 s
OpelOmega BFacelift 19995.7i V8
14.0 L/100 km
16.8 mpg US
20.2 mpg UK
7.0 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
BMW7 Series (E38)Facelift 1998750i
166 hp/t
124 kW/t
6.0 kg/hp
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
OpelOmega BFacelift 19995.7i V8
188 hp/t
140 kW/t
5.3 kg/hp
14.0 L/100 km
16.8 mpg US
20.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW7 Series (E38)Facelift 1998750iOpelOmega BFacelift 19995.7i V8
Power
326 hp
243 kW
310 hp
231 kW
Torque
490 Nm
361 lb-ft
450 Nm
332 lb-ft
Acceleration
6.6 s
7.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,960 kg
4,321 lb
1,650 kg
3,638 lb
Fuel consumption
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
14.0 L/100 km
16.8 mpg US
20.2 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,984 mm
196.2 in
Height
1,425 mm
56.1 in
Doors/seats
4 doors
5 seats
Trunk
530 L
18.7 cu ft
Length
4,898 mm
192.8 in
Height
1,450 mm
57.1 in
Range score
699 km
434 mi
536 km
333 mi
Trunk score
500 L
17.7 cu ft
530 L
18.7 cu ft
Power-to-weight score
166 hp/t
124 kW/t
6.0 kg/hp
188 hp/t
140 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 7 Series (E38) Facelift 1998 750iOpel Omega B Facelift 1999 5.7i V8
Consumption13.6 L/100 km17.3 mpg US20.8 mpg UK14 L/100 km16.8 mpg US20.2 mpg UK
Cost / 100 km23.80 LC100 km24.50 LC100 km
Cost / 100 mi38.30 LC100 mi39.43 LC100 mi
Annual fuel used2,040 L539 US gal449 UK gal2,100 L555 US gal462 UK gal
Annual fuel cost3,570 LC/year3,675 LC/year

Head-to-head comparisons

BMW 7 Series (E38) Facelift 1998 750i

  • Has 16 hp more
  • Has 40 Nm more
  • Is 0.4 s quicker from 0-100 km/h
  • Uses 0.4 L/100 km less fuel
  • Has 163 km (101 mi) more estimated range

Pros

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

Cons

  • Heaviest
  • Smallest trunk

Opel Omega B Facelift 1999 5.7i V8

  • Is 310 kg lighter
  • Has 22 hp/t better power-to-weight
  • Has 30 L more trunk volume

Pros

  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 7 Series (E38) 750i
Opel Omega B 5.7i V8
Compare selected cars
2 vehicles selected

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BMW 7 Series (E38) · Facelift 1998 750i vs Opel Omega B · Facelift 1999 5.7i V8 - car comparison - FastVsFaster