The Comparative Analysis :

BMW Z4 Roadster sDrive20i Automatic (13 - 16) vs. Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)

€ 39,600
BMW Z4 Roadster sDrive20i Automatic (13 - 16) BMW Z4 Roadster sDrive20i
€ 40,500
 Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10) Alfa Romeo Spider 2.4 JTDM 20V
€ 39,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 40,500

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The BMW Z4 Roadster sDrive20i is considerably smaller in every dimension. It's 15.4 cm shorter, 4 cm narrower and 2.7 cm lower than the Alfa Romeo Spider 2.4 JTDM 20V.
BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
1291
Blueprint BMW Z4 Roadster sDrive20i Automatic (13 - 16)
1790
1951
1318
Blueprint Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)
1830
2035
1790 mm
Width
1830 mm
1951 mm
Width Incl. Mirrors
2035 mm
1291 mm
Height
1318 mm
Blueprint BMW Z4 Roadster sDrive20i Automatic (13 - 16)
2496
4239
Blueprint Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)
2528
4393
4239 mm
Length
4393 mm
2496 mm
Wheelbase
2528 mm

Vehicle Weight

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
1495 kg
Kerb Weight
1730 kg
1750 kg
Gross Vehicle
Weight
2005 kg
BMW Z4 Roadster sDrive20i Automatic (13 - 16)
Weight Difference:
235 kg
13.58 %
Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)

General

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
E89
Generation
Typ 939
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Diesel
Rear-wheel drive
Drive
Front-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission

Engine

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
Straight-four petrol engine with tur­bo­charger
Engine Type
Straight-five diesel engine with tur­bo­charger
BMW N20
Engine Series
N20-B20
Engine Code
939 A3.000
4
Valves
4
4
Cylinders
5
1997 CC
Engine Capacity
2387 CC
181 bhp
at 5000 rpm
Power
197 bhp
at 4000 rpm
BMW Z4 Roadster sDrive20i
181 bhp
197 bhp
Alfa Romeo Spider 2.4 JTDM 20V
270 NM
at 1250 rpm
Max. Torque
400 NM
at 2000 rpm
BMW Z4 Roadster sDrive20i
270 NM
400 NM
Alfa Romeo Spider 2.4 JTDM 20V

Performance

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
144 mph
Maximum Speed
140 mph
7.2 sec
Acceleration 0 to 62 mph
8.5 sec
62 mph 62
mph

100 m
0.000 sec

BMW Z4 Roadster sDrive20i

62 mph 62
mph

118 m
0.000 sec

Alfa Romeo Spider 2.4 JTDM 20V

▶ REPLAY
8.26 kg/bhp
Weight-to-Power Ratio
8.78 kg/bhp
BMW Z4 Roadster sDrive20i
8.26 kg/bhp
8.78 kg/bhp
Alfa Romeo Spider 2.4 JTDM 20V

Fuel Economy / Emissions

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
Fuel Economy
42 mpg
combined
36 mpg
BMW Z4 Roadster sDrive20i
42 mpg
36 mpg
Alfa Romeo Spider 2.4 JTDM 20V
30 mpg
city
25 mpg
No data
motorway
No data
Kraftstoffanzeige
55 L
Fuel Tank Capacity
70 L
Kraftstoffanzeige
503 mi
Range
551 mi
BMW Z4 Roadster sDrive20i
503 mi
551 mi
Alfa Romeo Spider 2.4 JTDM 20V
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).
162.5 kWh
BMW Z4 Roadster sDrive20i
128.7 kWh
162.5 kWh
Alfa Romeo Spider 2.4 JTDM 20V
Euro 6b (NEFZ)
Emission Standard
Euro 4
159 g/km (NEFZ)
CO2 Emissions
208 g/km (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 2.4 JTDM 20V
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
275 kg
310 L
Boot Capacity
253 L
No data
Boot Capacity (Seats Down)
No data