Car comparison

Opel Omega B · Facelift 1999 5.7i V8vsAUDI A6 (4B/C5) · Facelift 2001 4.2 V8

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

New comparison

Opel Omega B · Facelift 1999

5.7i V8

310 hp5665 ccGasolineRWDAutomaticNaturally aspiratedSedan2000-2001
VS

AUDI A6 (4B/C5) · Facelift 2001

4.2 V8

300 hp4172 ccGasolineAWDAutomaticNaturally aspiratedSedan2001-2004

Comparison overview

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

Best choices

Opel Omega B Facelift 1999 5.7i V8

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    310 hp
    231 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • 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
  • Largest trunk
    530 L
  • Best overall score
    67/100
  • Best performance score
    62/100

AUDI A6 (4B/C5) Facelift 2001 4.2 V8

  • Quickest 0-100 km/h
    6.9 s
  • Lowest combined fuel consumption
    13.0 L/100 km
    18.1 mpg US
    21.7 mpg UK
  • Lowest highway consumption
    9.4 L/100 km
    25.0 mpg US
    30.1 mpg UK
  • Best estimated range
    631 km
    392 mi
  • Best economy score
    72/100
  • Best practicality score
    78/100

Specification comparison

Specification comparison
ModelOpelOmega BFacelift 19995.7i V8AUDIA6 (4B/C5)Facelift 20014.2 V8
Power
310hp231kW
300hp224kW
Torque
450Nm332lb-ft
400Nm295lb-ft
Curb weight
1,650kg3,638lb
1,750kg3,858lb
Gross weight
2,195kg4,839lb
2,290kg5,049lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
250 km/h
155 mph
To 99% top speed
70.6s99% target: 257 km/h / 160 mph
Calculated
71.0s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
7.0s
6.9s
0-200 km/h
21.8s
Calculated
23.3s
Calculated
0-60 mph
6.7s
Calculated
6.6s
Calculated
Fuel consumption
14L/100 km16.8mpg US20.2mpg UK
13L/100 km18.1mpg US21.7mpg UK
Fuel consumption city
18L/100 km13.1mpg US15.7mpg UK
19.3L/100 km12.2mpg US14.6mpg UK
Fuel consumption highway
10L/100 km23.5mpg US28.2mpg UK
9.4L/100 km25mpg US30.1mpg UK
Quarter mile
14.9s
Calculated
14.8s
Calculated
Power-to-weight
188hp/t140kW/t85hp/1000 lb
Calculated
171hp/t128kW/t78hp/1000 lb
Calculated
Torque-to-weight
273Nm/t182lb-ft/ton
Calculated
229Nm/t153lb-ft/ton
Calculated
Estimated range
536km333mi
Calculated
631km392mi
Calculated
Displacement
5,665cc346cu in
4,172cc255cu in
Length
4,898mm193in
4,833mm190in
Width
1,775mm70in
1,850mm73in
Height
1,450mm57in
1,453mm57in
Wheelbase
2,730mm107in
2,759mm109in
Front track
1,514mm60in
1,578mm62in
Rear track
1,528mm60in
1,590mm63in
Ground clearance
140mm6in
-
Trunk volume
530L
-
Max trunk volume
830L
434L
Doors
4
4
Seats
5
5
Fuel tank
75L
82L
CO2 emissions-
312g/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.

Opel Omega B Facelift 1999 5.7i V8AUDI A6 (4B/C5) Facelift 2001 4.2 V8PowerTorque
  • Opel Omega B Facelift 1999 5.7i V8: Power / Torque
  • AUDI A6 (4B/C5) Facelift 2001 4.2 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
OpelOmega BFacelift 19995.7i V85,600 rpm4,400 rpm5,850 rpm
AUDIA6 (4B/C5)Facelift 20014.2 V86,200 rpm3,000-4,000 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricOpelOmega BFacelift 19995.7i V8AUDIA6 (4B/C5)Facelift 20014.2 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
6.7 s
6.6 s
0-100 km/h
0-62 mph
7.0 s
6.9 s
0-200 km/h
0-124 mph
21.8 s
23.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
250 km/h
155 mph
Drag race simulation
60 ft
18 m
2.7 s
2.6 s
330 ft
101 m
6.8 s
6.7 s
1/8 mile
201 m
10.0 s
9.9 s
1000 ft
305 m
12.6 s
12.6 s
1/4 mile
402 m
14.9 s
14.8 s
Trap speed
1/4 mile
402 m
165 km/h
103 mph
163 km/h
101 mph

Power comparison

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

Chart data table
VehicleValue
OpelOmega BFacelift 19995.7i V8
310 hp
231 kW
AUDIA6 (4B/C5)Facelift 20014.2 V8
300 hp
224 kW

Opel Omega B Facelift 1999 5.7i V8 has 10 hp more than AUDI A6 (4B/C5) Facelift 2001 4.2 V8.

The biggest power difference is between AUDI A6 (4B/C5) Facelift 2001 4.2 V8 and Opel Omega B Facelift 1999 5.7i V8: 10 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
OpelOmega BFacelift 19995.7i V8
450 Nm
332 lb-ft
AUDIA6 (4B/C5)Facelift 20014.2 V8
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
OpelOmega BFacelift 19995.7i V8
1,650 kg
3,638 lb
AUDIA6 (4B/C5)Facelift 20014.2 V8
1,750 kg
3,858 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
OpelOmega BFacelift 19995.7i V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 (4B/C5)Facelift 20014.2 V8
250 km/h
155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
OpelOmega BFacelift 19995.7i V87.0 s
AUDIA6 (4B/C5)Facelift 20014.2 V86.9 s

Although Opel Omega B Facelift 1999 5.7i V8 has more power, AUDI A6 (4B/C5) Facelift 2001 4.2 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI A6 (4B/C5) Facelift 2001 4.2 V8 and Opel Omega B Facelift 1999 5.7i V8: 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
OpelOmega BFacelift 19995.7i V8
14.0 L/100 km
16.8 mpg US
20.2 mpg UK
AUDIA6 (4B/C5)Facelift 20014.2 V8
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

The biggest fuel consumption difference is between AUDI A6 (4B/C5) Facelift 2001 4.2 V8 and Opel Omega B Facelift 1999 5.7i V8: 1.0 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
OpelOmega BFacelift 19995.7i V8
188 hp/t
140 kW/t
5.3 kg/hp
AUDIA6 (4B/C5)Facelift 20014.2 V8
171 hp/t
128 kW/t
5.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
OpelOmega BFacelift 19995.7i V8
536 km
333 mi
AUDIA6 (4B/C5)Facelift 20014.2 V8
631 km
392 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
OpelOmega BFacelift 19995.7i V8
310 hp
231 kW
7.0 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDIA6 (4B/C5)Facelift 20014.2 V8
300 hp
224 kW
6.9 s
250 km/h
155 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
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
AUDIA6 (4B/C5)Facelift 20014.2 V8
Power
300 hp
224 kW
0-100 km/h6.9 s
Top speed
250 km/h
155 mph
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,453 mm
57.2 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
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
AUDIA6 (4B/C5)Facelift 20014.2 V8
Power
300 hp
224 kW
0-100 km/h6.9 s
Top speed
250 km/h
155 mph
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

AUDI A6 (4B/C5) Facelift 2001 4.2 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
OpelOmega BFacelift 19995.7i V8
14.0 L/100 km
16.8 mpg US
20.2 mpg UK
7.0 s
AUDIA6 (4B/C5)Facelift 20014.2 V8
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
6.9 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
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
AUDIA6 (4B/C5)Facelift 20014.2 V8
171 hp/t
128 kW/t
5.8 kg/hp
13.0 L/100 km
18.1 mpg US
21.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleOpelOmega BFacelift 19995.7i V8AUDIA6 (4B/C5)Facelift 20014.2 V8
Power
310 hp
231 kW
300 hp
224 kW
Torque
450 Nm
332 lb-ft
400 Nm
295 lb-ft
Acceleration
7.0 s
6.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
250 km/h
155 mph
Lightness
1,650 kg
3,638 lb
1,750 kg
3,858 lb
Fuel consumption
14.0 L/100 km
16.8 mpg US
20.2 mpg UK
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
Practicality
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
Doors/seats
4 doors
5 seats
Trunk
434 L
15.3 cu ft
Length
4,833 mm
190.3 in
Height
1,453 mm
57.2 in
Range score
536 km
333 mi
631 km
392 mi
CO2 score
-
312 g/km
Trunk score
530 L
18.7 cu ft
434 L
15.3 cu ft
Power-to-weight score
188 hp/t
140 kW/t
5.3 kg/hp
171 hp/t
128 kW/t
5.8 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
VehicleOpel Omega B Facelift 1999 5.7i V8AUDI A6 (4B/C5) Facelift 2001 4.2 V8
Consumption14 L/100 km16.8 mpg US20.2 mpg UK13 L/100 km18.1 mpg US21.7 mpg UK
Cost / 100 km24.50 LC100 km22.75 LC100 km
Cost / 100 mi39.43 LC100 mi36.61 LC100 mi
Annual fuel used2,100 L555 US gal462 UK gal1,950 L515 US gal429 UK gal
Annual fuel cost3,675 LC/year3,413 LC/year

Head-to-head comparisons

Opel Omega B Facelift 1999 5.7i V8

  • Has 10 hp more
  • Has 50 Nm more
  • Is 100 kg lighter
  • Has 10 km/h (6 mph) higher top speed
  • Has 16 hp/t better power-to-weight
  • Has 96 L more trunk volume

Pros

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

Cons

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

AUDI A6 (4B/C5) Facelift 2001 4.2 V8

  • Is 0.1 s quicker from 0-100 km/h
  • Uses 1.0 L/100 km less fuel
  • Has 95 km (59 mi) more estimated range

Pros

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

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Opel Omega B 5.7i V8
AUDI A6 (4B/C5) 4.2 V8
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2 vehicles selected

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