The Comparative Analysis :

BMW Z4 Roadster sDrive18i Automatic (13 - 16) vs. Alfa Romeo 4C Spider (15 - 18)

€ 36,600
BMW Z4 Roadster sDrive18i Automatic (13 - 16) BMW Z4 Roadster sDrive18i
€ 72,000
 Alfa Romeo 4C Spider (15 - 18) Alfa Romeo 4C Spider
€ 36,600
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 sDrive18i is 9.8 inches longer, 2.9 inches narrower and 4.3 inches taller than the Alfa Romeo 4C Spider.
BMW Z4 Roadster sDrive18i
Alfa Romeo 4C Spider
50.8
Blueprint BMW Z4 Roadster sDrive18i Automatic (13 - 16)
70.5
76.8
46.6
Blueprint Alfa Romeo 4C Spider (15 - 18)
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
Blueprint BMW Z4 Roadster sDrive18i Automatic (13 - 16)
98.3
166.9
Blueprint Alfa Romeo 4C Spider (15 - 18)
93.7
157
166.9 in
Length
157 in
98.3 in
Wheelbase
93.7 in

Vehicle Weight

BMW Z4 Roadster sDrive18i
Alfa Romeo 4C Spider
3296 lb
Curb Weight
2238 lb
3858 lb
Gross Vehicle
Weight
2590 lb
BMW Z4 Roadster sDrive18i Automatic (13 - 16)
Weight Difference:
1058 lb
32.1 %
Alfa Romeo 4C Spider (15 - 18)

General

BMW Z4 Roadster sDrive18i
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
8-speed automatic transmission
Transmission
6-speed dual clutch transmission

Engine

BMW Z4 Roadster sDrive18i
Alfa Romeo 4C Spider
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-four gasoline engine with tur­bo­charger
BMW N20
Engine Series
N20-B20
Engine Code
960 A1.000
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
1.7 L / 83 cu in
154 hp
at 5000 rpm
Power
238 hp
at 6000 rpm
BMW Z4 Roadster sDrive18i
154 hp
238 hp
Alfa Romeo 4C Spider
177 lb‑ft
at 1250 rpm
Max. Torque
258 lb‑ft
at 2200 rpm
BMW Z4 Roadster sDrive18i
177 lb‑ft
258 lb‑ft
Alfa Romeo 4C Spider

Performance

BMW Z4 Roadster sDrive18i
Alfa Romeo 4C Spider
137 mph
Maximum Speed
160 mph
8.1 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

371 ft
0.000 sec

BMW Z4 Roadster sDrive18i

62 mph 62
mph

207 ft
0.000 sec

Alfa Romeo 4C Spider

▶ REPLAY
21.4 lb/hp
Weight-to-Power Ratio
9.4 lb/hp
BMW Z4 Roadster sDrive18i
21.4 lb/hp
9.4 lb/hp
Alfa Romeo 4C Spider

Fuel Economy / Emissions

BMW Z4 Roadster sDrive18i
Alfa Romeo 4C Spider
Fuel Economy
35 mpg
combined
34 mpg
BMW Z4 Roadster sDrive18i
35 mpg
34 mpg
Alfa Romeo 4C Spider
25 mpg
city
23 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
10.6 gal
Kraftstoffanzeige
503 mi
Range
360 mi
BMW Z4 Roadster sDrive18i
503 mi
360 mi
Alfa Romeo 4C Spider
Environmental Impact
128.7 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).
130.7 kWh
BMW Z4 Roadster sDrive18i
128.7 kWh
130.7 kWh
Alfa Romeo 4C Spider
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
256 g/mi (NEFZ)
CO2 Emissions
259 g/mi (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive18i
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