The Comparative Analysis :

BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) vs. Alfa Romeo 4C Spider (15 - 18)

€ 39,000
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13) BMW Z4 Roadster sDrive20i
€ 72,000
 Alfa Romeo 4C Spider (15 - 18) Alfa Romeo 4C Spider
€ 39,000
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. The BMW Z4 Roadster sDrive20i is 25 cm longer, 7.4 cm narrower and 10.8 cm taller than the Alfa Romeo 4C Spider.
BMW Z4 Roadster sDrive20i
Alfa Romeo 4C Spider
1291
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
1790
1951
1183
Blueprint Alfa Romeo 4C Spider (15 - 18)
1864
2064
1790 mm
Width
1864 mm
1951 mm
Width Incl. Mirrors
2064 mm
1291 mm
Height
1183 mm
Blueprint BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
2496
4239
Blueprint Alfa Romeo 4C Spider (15 - 18)
2380
3989
4239 mm
Length
3989 mm
2496 mm
Wheelbase
2380 mm

Vehicle Weight

BMW Z4 Roadster sDrive20i
Alfa Romeo 4C Spider
1495 kg
Kerb Weight
1015 kg
1750 kg
Gross Vehicle
Weight
1175 kg
BMW Z4 Roadster sDrive20i Sport-Automatic (11 - 13)
Weight Difference:
480 kg
32.11 %
Alfa Romeo 4C Spider (15 - 18)

General

BMW Z4 Roadster sDrive20i
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
8-speed automatic transmission
Transmission
6-speed dual clutch transmission

Engine

BMW Z4 Roadster sDrive20i
Alfa Romeo 4C Spider
Straight-four petrol engine with tur­bo­charger
Engine Type
Straight-four petrol engine with tur­bo­charger
BMW N20
Engine Series
N20-B20
Engine Code
960 A1.000
4
Valves
4
4
Cylinders
4
1997 CC
Engine Capacity
1742 CC
181 bhp
at 5000 rpm
Power
238 bhp
at 6000 rpm
BMW Z4 Roadster sDrive20i
181 bhp
238 bhp
Alfa Romeo 4C Spider
270 NM
at 1250 rpm
Max. Torque
350 NM
at 2200 rpm
BMW Z4 Roadster sDrive20i
270 NM
350 NM
Alfa Romeo 4C Spider

Performance

BMW Z4 Roadster sDrive20i
Alfa Romeo 4C Spider
144 mph
Maximum Speed
160 mph
7.2 sec
Acceleration 0 to 62 mph
4.5 sec
62 mph 62
mph

100 m
0.000 sec

BMW Z4 Roadster sDrive20i

62 mph 62
mph

63 m
0.000 sec

Alfa Romeo 4C Spider

▶ REPLAY
8.26 kg/bhp
Weight-to-Power Ratio
4.26 kg/bhp
BMW Z4 Roadster sDrive20i
8.26 kg/bhp
4.26 kg/bhp
Alfa Romeo 4C Spider

Fuel Economy / Emissions

BMW Z4 Roadster sDrive20i
Alfa Romeo 4C Spider
Fuel Economy
42 mpg
combined
41 mpg
BMW Z4 Roadster sDrive20i
42 mpg
41 mpg
Alfa Romeo 4C Spider
31 mpg
city
28 mpg
No data
motorway
No data
Kraftstoffanzeige
55 L
Fuel Tank Capacity
40 L
Kraftstoffanzeige
503 mi
Range
360 mi
BMW Z4 Roadster sDrive20i
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 sDrive20i
128.7 kWh
130.7 kWh
Alfa Romeo 4C Spider
Euro 5
Emission Standard
Euro 6b (NEFZ)
159 g/km (NEFZ)
CO2 Emissions
161 g/km (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive20i
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