The Comparative Analysis :

BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..) vs. Alfa Romeo 4C Spider (15 - 18)

€ 49,000
BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..) BMW Z4 Roadster sDrive30i
€ 72,000
 Alfa Romeo 4C Spider (15 - 18) Alfa Romeo 4C Spider
€ 49,000
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. Both cars are the same width, but the BMW Z4 Roadster sDrive30i is 13.2 inches longer and 4.8 inches taller.
BMW Z4 Roadster sDrive30i
Alfa Romeo 4C Spider
51.3
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
73.4
79.7
46.6
Blueprint Alfa Romeo 4C Spider (15 - 18)
73.4
81.3
73.4 in
Width
73.4 in
79.7 in
Width Incl. Mirrors
81.3 in
51.3 in
Height
46.6 in
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
97.2
170.2
Blueprint Alfa Romeo 4C Spider (15 - 18)
93.7
157
170.2 in
Length
157 in
97.2 in
Wheelbase
93.7 in

Vehicle Weight

BMW Z4 Roadster sDrive30i
Alfa Romeo 4C Spider
3318 lb
Curb Weight
2238 lb
3836 lb
Gross Vehicle
Weight
2590 lb
BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
Weight Difference:
1080 lb
32.55 %
Alfa Romeo 4C Spider (15 - 18)

General

BMW Z4 Roadster sDrive30i
Alfa Romeo 4C Spider
G29
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 sDrive30i
Alfa Romeo 4C Spider
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-four gasoline engine with tur­bo­charger
BMW B48
Engine Series
B48-B20
Engine Code
960 A1.000
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
1.7 L / 83 cu in
254 hp
at 5000 rpm
Power
238 hp
at 6000 rpm
BMW Z4 Roadster sDrive30i
254 hp
238 hp
Alfa Romeo 4C Spider
295 lb‑ft
at 1550 rpm
Max. Torque
258 lb‑ft
at 2200 rpm
BMW Z4 Roadster sDrive30i
295 lb‑ft
258 lb‑ft
Alfa Romeo 4C Spider

Performance

BMW Z4 Roadster sDrive30i
Alfa Romeo 4C Spider
155 mph
Maximum Speed
160 mph
5.4 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

246 ft
0.000 sec

BMW Z4 Roadster sDrive30i

62 mph 62
mph

207 ft
0.000 sec

Alfa Romeo 4C Spider

▶ REPLAY
13.06 lb/hp
Weight-to-Power Ratio
9.4 lb/hp
BMW Z4 Roadster sDrive30i
13.06 lb/hp
9.4 lb/hp
Alfa Romeo 4C Spider

Fuel Economy / Emissions

BMW Z4 Roadster sDrive30i
Alfa Romeo 4C Spider
Fuel Economy
39 mpg
combined
34 mpg
BMW Z4 Roadster sDrive30i
39 mpg
34 mpg
Alfa Romeo 4C Spider
32 mpg
city
23 mpg
No data
highway
No data
Kraftstoffanzeige
13.7 gal
Fuel Tank Capacity
10.6 gal
Kraftstoffanzeige
539 mi
Range
360 mi
BMW Z4 Roadster sDrive30i
539 mi
360 mi
Alfa Romeo 4C Spider
Environmental Impact
113.6 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 sDrive30i
113.6 kWh
130.7 kWh
Alfa Romeo 4C Spider
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6b (NEFZ)
267 g/mi (WLTP)
CO2 Emissions
259 g/mi (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive30i
Alfa Romeo 4C Spider
2
Doors
2
2
No. of Seats
2
518 lb
Maximum Payload
353 lb
8 cu ft
Trunk Volume
1.1 cu ft
No data
Cargo Volume (Seats Down)
No data