The Comparative Analysis :
BMW Z4 Roadster sDrive23i (09 - 11) vs. Alfa Romeo 4C Spider (15 - 18)
€ 36,400
€ 72,000
€ 36,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 72,000
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ considerably. The BMW Z4 Roadster sDrive23i is 25 cm longer, 7.4 cm narrower and 10.8 cm taller than the Alfa Romeo 4C Spider.
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
1291
1790
1951
1183
1864
2064
1790 mm
Width
1864 mm
1951 mm
Width Incl. Mirrors
2064 mm
1291 mm
Height
1183 mm
2496
4239
2380
3989
4239 mm
Length
3989 mm
2496 mm
Wheelbase
2380 mm
Vehicle Weight
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
1480 kg
Kerb Weight
1015 kg
1735 kg
Gross Vehicle
Weight
Weight
1175 kg
Weight Difference:
465 kg
31.42 %
General
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
E89
Generation
Typ 960
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Unleaded (95 RON)
Rear-wheel drive
Drive
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed dual clutch transmission
Engine
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
Straight-six petrol engine (naturally aspirated engine)
Engine Type
Straight-four petrol engine with turbocharger
BMW N52
Engine Series
N52-B25
Engine Code
960 A1.000
4
Valves
4
6
Cylinders
4
2497 CC
Engine Capacity
1742 CC
201 bhp
at 6300 rpm
Power
238 bhp
at 6000 rpm
BMW Z4 Roadster sDrive23i
201 bhp
238 bhp
Alfa Romeo 4C Spider
250 NM
at 2750 rpm
Max. Torque
350 NM
at 2200 rpm
BMW Z4 Roadster sDrive23i
250 NM
350 NM
Alfa Romeo 4C Spider
Performance
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
150 mph
Maximum Speed
160 mph
6.6 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
92 m
0.000 sec
BMW Z4 Roadster sDrive23i
62 mph
62
mph
mph
63 m
0.000 sec
Alfa Romeo 4C Spider
▶ REPLAY
7.36 kg/bhp
Weight-to-Power Ratio
4.26 kg/bhp
BMW Z4 Roadster sDrive23i
7.36 kg/bhp
4.26 kg/bhp
Alfa Romeo 4C Spider
Fuel Economy / Emissions
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
Fuel Economy
33 mpg
combined
41 mpg
BMW Z4 Roadster sDrive23i
33 mpg
41 mpg
Alfa Romeo 4C Spider
23 mpg
city
28 mpg
No data
motorway
No data
55 L
Fuel Tank Capacity
40 L
402 mi
Range
360 mi
BMW Z4 Roadster sDrive23i
402 mi
360 mi
Alfa Romeo 4C Spider
Environmental Impact
161.1 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).
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).
130.7 kWh
BMW Z4 Roadster sDrive23i
161.1 kWh
130.7 kWh
Alfa Romeo 4C Spider
Euro 5
Emission Standard
Euro 6b (NEFZ)
199 g/km (NEFZ)
CO2 Emissions
161 g/km (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive23i
Alfa Romeo 4C Spider
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
160 kg
310 L
Boot Capacity
40 L
No data
Boot Capacity (Seats Down)
No data
