The Comparative Analysis :

Mercedes AMG GT S Roadster SPEEDSHIFT DCT (18 - ..) vs. BMW i8 Roadster (18 - ..)

€ 151,100
Mercedes AMG GT S Roadster SPEEDSHIFT DCT (18 - ..) Mercedes AMG GT S Roadster
€ 155,000
 BMW i8 Roadster (18 - ..) BMW i8 Roadster
€ 151,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 155,000

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Mercedes AMG GT S Roadster is slightly smaller in every dimension. It's 5.7 inches shorter, 0.1 inches narrower and 1.2 inches lower than the BMW i8 Roadster.
Mercedes AMG GT S Roadster
BMW i8 Roadster
49.6
Blueprint Mercedes AMG GT S Roadster SPEEDSHIFT DCT (18 - ..)
76.3
81.7
50.7
Blueprint BMW i8 Roadster (18 - ..)
76.5
87.3
76.3 in
Width
76.5 in
81.7 in
Width Incl. Mirrors
87.3 in
49.6 in
Height
50.7 in
Blueprint Mercedes AMG GT S Roadster SPEEDSHIFT DCT (18 - ..)
103.5
178.9
Blueprint BMW i8 Roadster (18 - ..)
110.2
184.6
178.9 in
Length
184.6 in
103.5 in
Wheelbase
110.2 in

Vehicle Weight

Mercedes AMG GT S Roadster
BMW i8 Roadster
3748 lb
Curb Weight
3682 lb
4277 lb
Gross Vehicle
Weight
4332 lb
Mercedes AMG GT S Roadster SPEEDSHIFT DCT (18 - ..)
Weight Difference:
66 lb
1.76 %
BMW i8 Roadster (18 - ..)

General

Mercedes AMG GT S Roadster
BMW i8 Roadster
C190
Generation
I15
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
On-demand four-wheel drive (4WD) with automatic engagement
7-speed dual clutch transmission
Transmission
6-speed automatic transmission

Engine

Mercedes AMG GT S Roadster
BMW i8 Roadster
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
3-cylinder plug-in hybrid gasoline engine with tur­bo­charger
Mercedes-Benz M 178
Engine Series
BMW B38
M 178.980
Engine Code
B38-K15
4
Valves
4
8
Cylinders
3
4 L / 196 cu in
Displacement
1.5 L / 73 cu in
515 hp
at 6250 rpm
Power
369 hp
at 5800 rpm
Mercedes AMG GT S Roadster
515 hp
369 hp
BMW i8 Roadster
494 lb‑ft
at 1900 rpm
Max. Torque
420 lb‑ft
at 3700 rpm
Mercedes AMG GT S Roadster
494 lb‑ft
420 lb‑ft
BMW i8 Roadster

Performance

Mercedes AMG GT S Roadster
BMW i8 Roadster
191 mph
Maximum Speed
155 mph
3.8 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph 62
mph

174 ft
0.000 sec

Mercedes AMG GT S Roadster

62 mph 62
mph

210 ft
0.000 sec

BMW i8 Roadster

▶ REPLAY
7.28 lb/hp
Weight-to-Power Ratio
9.98 lb/hp
Mercedes AMG GT S Roadster
7.28 lb/hp
9.98 lb/hp
BMW i8 Roadster

Fuel Economy / Emissions

Mercedes AMG GT S Roadster
BMW i8 Roadster
Fuel Economy
20 mpg
combined
118 mpg
Mercedes AMG GT S Roadster
20 mpg
118 mpg
BMW i8 Roadster
15 mpg
city
No data
26 mpg
highway
No data
Kraftstoffanzeige
17.2 gal
Fuel Tank Capacity
7.9 gal
Kraftstoffanzeige
351 mi
Range
932 mi
Mercedes AMG GT S Roadster
351 mi
932 mi
BMW i8 Roadster
Environmental Impact
217.9 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
37.8 kWh
Mercedes AMG GT S Roadster
217.9 kWh
37.8 kWh
BMW i8 Roadster
Euro 6d-TEMP
Emission Standard
Euro 6d-TEMP-EVAP (WLTP)
446 g/mi (WLTP)
CO2 Emissions
80 g/mi (WLTP)

Practical Convenience

Mercedes AMG GT S Roadster
BMW i8 Roadster
2
Doors
3
2
No. of Seats
2
529 lb
Maximum Payload
650 lb
4.7 cu ft
Trunk Volume
2.5 cu ft
No data
Cargo Volume (Seats Down)
No data