The Comparative Analysis :
BMW Z4 Roadster sDrive35i Sport-Automatic DKG (09 - 13) vs. Alfa Romeo 4C Spider (15 - 18)
€ 51,700

€ 72,000

€ 51,700
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 sDrive35i is 9.8 inches longer, 2.9 inches narrower and 4.3 inches taller than the Alfa Romeo 4C Spider.
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
50.8
70.5
76.8
46.6
73.4
81.3
70.5 in
Width
73.4 in
76.8 in
Width Incl. Mirrors
81.3 in
50.8 in
Height
46.6 in
98.3
166.9
93.7
157
166.9 in
Length
157 in
98.3 in
Wheelbase
93.7 in
Vehicle Weight
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
3527 lb
Curb Weight
2238 lb
4090 lb
Gross Vehicle
Weight
Weight
2590 lb

Weight Difference:
1290 lb
36.57 %

General
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
E89
Generation
Typ 960
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed dual clutch transmission
Transmission
6-speed dual clutch transmission
Engine
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
Straight-six gasoline engine with two turbochargers (biturbo)
Engine Type
Straight-four gasoline engine with turbocharger
BMW N54
Engine Series
N54-B30
Engine Code
960 A1.000

4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
1.7 L / 83 cu in
302 hp
at 5800 rpm
Power
238 hp
at 6000 rpm
BMW Z4 Roadster sDrive35i
302 hp
238 hp
Alfa Romeo 4C Spider
295 lb‑ft
at 1300 rpm
Max. Torque
258 lb‑ft
at 2200 rpm
BMW Z4 Roadster sDrive35i
295 lb‑ft
258 lb‑ft
Alfa Romeo 4C Spider
Performance
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
155 mph
Maximum Speed
160 mph
5.1 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph
62
mph
mph
233 ft
0.000 sec

BMW Z4 Roadster sDrive35i
62 mph
62
mph
mph
207 ft
0.000 sec

Alfa Romeo 4C Spider
▶ REPLAY
11.68 lb/hp
Weight-to-Power Ratio
9.4 lb/hp
BMW Z4 Roadster sDrive35i
11.68 lb/hp
9.4 lb/hp
Alfa Romeo 4C Spider
Fuel Economy / Emissions
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
Fuel Economy
26 mpg
combined
34 mpg
BMW Z4 Roadster sDrive35i
26 mpg
34 mpg
Alfa Romeo 4C Spider
19 mpg
city
23 mpg
No data
highway
No data
14.5 gal
Fuel Tank Capacity
10.6 gal
380 mi
Range
360 mi
BMW Z4 Roadster sDrive35i
380 mi
360 mi
Alfa Romeo 4C Spider
Environmental Impact
170.4 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 sDrive35i
170.4 kWh
130.7 kWh
Alfa Romeo 4C Spider
Euro 5
Emission Standard
Euro 6b (NEFZ)
338 g/mi (NEFZ)
CO2 Emissions
259 g/mi (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive35i
Alfa Romeo 4C Spider
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
353 lb
8.8 cu ft
Trunk Volume
1.1 cu ft





No data
Cargo Volume (Seats Down)
No data