Car comparison

BMW i7 (G70) M70 105.7 kWhvsMercedes-Benz S-class (W223) · Facelift 2026 S 580 V8

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

New comparison

BMW i7 (G70)

M70 105.7 kWh

660 hpElectricAWDAutomaticSedan2023-2026

Mercedes-Benz S-class (W223) · Facelift 2026

S 580 V8

537 hp3982 ccGasolineAWDAutomaticTurbochargedSedan2026-present

Comparison overview

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

Mercedes-Benz S-class (W223) Facelift 2026 S 580 V8

Lightest
2,175 kg
4,795 lb
Best power-to-weight
247 hp/t
184 kW/t
4.1 kg/hp
Largest trunk
530 L
Best overall score
83/100
Best performance score
86/100
Best economy score
77/100

BMW i7 (G70) M70 105.7 kWh

Quickest 0-100 km/h
3.7 s
Fastest top speed
265 km/h
165 mph Unrestricted
250 km/h
155 mph Restricted
Most powerful
660 hp
492 kW
Highest torque
1,100 Nm
811 lb-ft
Best practicality score
77/100

Specification comparison

Specification comparison
Model	BMWi7 (G70)M70 105.7 kWh	Mercedes-BenzS-class (W223)Facelift 2026S 580 V8
Power	660hp492kW	537hp400kW
Torque	1,100Nm811lb-ft	750Nm553lb-ft
Curb weight	2,695kg5,941lb	2,175kg4,795lb
Gross weight	3,250kg7,165lb	2,895kg6,382lb
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	37.2s99% target: 262 km/h / 163 mph Calculated	38.0s99% target: 262 km/h / 163 mph Calculated
0-100 km/h	3.7s	4.0s
0-200 km/h	11.2s Calculated	11.7s Calculated
0-60 mph	3.5s Calculated	3.8s Calculated
Fuel consumption	-	11.2L/100 km21mpg US25.2mpg UK
Quarter mile	11.5s Calculated	11.8s Calculated
Power-to-weight	245hp/t183kW/t111hp/1000 lb Calculated	247hp/t184kW/t112hp/1000 lb Calculated
Torque-to-weight	408Nm/t273lb-ft/ton Calculated	345Nm/t231lb-ft/ton Calculated
Estimated range	-	679km422mi Calculated
Displacement	-	3,982cc243cu in
Length	5,391mm212in	5,194mm204in
Width	1,950mm77in	1,921mm76in
Height	1,544mm61in	1,503mm59in
Wheelbase	3,215mm127in	3,106mm122in
Front track	1,662mm65in	1,660mm65in
Rear track	1,684mm66in	1,688mm66in
Ground clearance	136mm5in	-
Trunk volume	500L	530L
Doors	4	4
Seats	5	5
Fuel tank	-	76L

Performance charts

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

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMWi7 (G70)M70 105.7 kWh	Mercedes-BenzS-class (W223)Facelift 2026S 580 V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	3.5 s	3.8 s
0-100 km/h 0-62 mph	3.7 s	4.0 s
0-200 km/h 0-124 mph	11.2 s	11.7 s
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Limited
	Drag race simulation
60 ft 18 m	2.0 s	2.1 s
330 ft 101 m	5.1 s	5.3 s
1/8 mile 201 m	7.6 s	7.8 s
1000 ft 305 m	9.7 s	10.0 s
1/4 mile 402 m	11.5 s	11.8 s
Trap speed 1/4 mile 402 m	203 km/h 126 mph	201 km/h 125 mph

Power comparison

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

Chart data table
Vehicle	Value
BMWi7 (G70)M70 105.7 kWh	660 hp 492 kW
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	537 hp 400 kW

BMW i7 (G70) M70 105.7 kWh has 123 hp more than Mercedes-Benz S-class (W223) Facelift 2026 S 580 V8.

The biggest power difference is between Mercedes-Benz S-class (W223) Facelift 2026 S 580 V8 and BMW i7 (G70) M70 105.7 kWh: 123 hp (92 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMWi7 (G70)M70 105.7 kWh	1,100 Nm 811 lb-ft
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	750 Nm 553 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMWi7 (G70)M70 105.7 kWh	2,695 kg 5,941 lb
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	2,175 kg 4,795 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
BMWi7 (G70)M70 105.7 kWh	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	Unrestricted 265 km/h165 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
Vehicle	Value
BMWi7 (G70)M70 105.7 kWh	3.7 s
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	4.0 s

The biggest 0-100 km/h difference is between BMW i7 (G70) M70 105.7 kWh and Mercedes-Benz S-class (W223) Facelift 2026 S 580 V8: 0.3 s.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
BMWi7 (G70)M70 105.7 kWh	245 hp/t 183 kW/t 4.1 kg/hp
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	247 hp/t 184 kW/t 4.1 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMWi7 (G70)M70 105.7 kWh	660 hp 492 kW	3.7 s	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph
Mercedes-BenzS-class (W223)Facelift 2026S 580 V8	537 hp 400 kW	4.0 s	Unrestricted 265 km/h165 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.

Vehicle

Performance score

Practicality score

BMWi7 (G70)M70 105.7 kWh

Power	660 hp 492 kW
0-100 km/h	3.7 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

Doors/seats	4 doors 5 seats
Trunk	500 L 17.7 cu ft
Length	5,391 mm 212.2 in
Height	1,544 mm 60.8 in

Mercedes-BenzS-class (W223)Facelift 2026S 580 V8

Power	537 hp 400 kW
0-100 km/h	4.0 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

Doors/seats	4 doors 5 seats
Trunk	530 L 18.7 cu ft
Length	5,194 mm 204.5 in
Height	1,503 mm 59.2 in

Detailed score breakdown

Vehicle

BMWi7 (G70)M70 105.7 kWh

Mercedes-BenzS-class (W223)Facelift 2026S 580 V8

Power

660 hp

492 kW

537 hp

400 kW

Torque

1,100 Nm

811 lb-ft

750 Nm

553 lb-ft

Acceleration

3.7 s

4.0 s

Top speed

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Lightness

2,695 kg

5,941 lb

2,175 kg

4,795 lb

Fuel consumption

11.2 L/100 km

21.0 mpg US

25.2 mpg UK

Practicality

Doors/seats	4 doors 5 seats
Trunk	500 L 17.7 cu ft
Length	5,391 mm 212.2 in
Height	1,544 mm 60.8 in

Doors/seats	4 doors 5 seats
Trunk	530 L 18.7 cu ft
Length	5,194 mm 204.5 in
Height	1,503 mm 59.2 in

Range score

679 km

422 mi

Trunk score

500 L

17.7 cu ft

530 L

18.7 cu ft

Power-to-weight score

245 hp/t

183 kW/t

4.1 kg/hp

247 hp/t

184 kW/t

4.1 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Mercedes-Benz S-class (W223) Facelift 2026 S 580 V8
Consumption	11.2 L/100 km21 mpg US25.2 mpg UK
Cost / 100 km	19.60 LC100 km
Cost / 100 mi	31.54 LC100 mi
Annual fuel used	1,680 L444 US gal370 UK gal
Annual fuel cost	2,940 LC/year