The Comparative Analysis :
Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10) vs. BMW Z4 Roadster sDrive18i Automatic (13 - 16)
€ 40,500

€ 36,600

€ 40,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 36,600
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Alfa Romeo Spider 2.4 JTDM 20V is considerably bigger in every dimension. It's 15.4 cm longer, 4 cm wider and 2.7 cm taller than the BMW Z4 Roadster sDrive18i.
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
1318
1830
2035
1291
1790
1951
1830 mm
Width
1790 mm
2035 mm
Width Incl. Mirrors
1951 mm
1318 mm
Height
1291 mm
2528
4393
2496
4239
4393 mm
Length
4239 mm
2528 mm
Wheelbase
2496 mm
Vehicle Weight
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
1730 kg
Kerb Weight
1495 kg
2005 kg
Gross Vehicle
Weight
Weight
1750 kg

Weight Difference:
235 kg
13.58 %

General
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
Typ 939
Generation
E89
Roadster
Car Body Style
Roadster
Diesel
Fuel Type
Super Unleaded (98 RON)

Front-wheel drive
Drive
Rear-wheel drive

6-speed automatic transmission
Transmission
8-speed automatic transmission
Engine
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
Straight-five diesel engine with turbocharger
Engine Type
Straight-four petrol engine with turbocharger
Engine Series
BMW N20
939 A3.000
Engine Code
N20-B20

4
Valves
4
5
Cylinders
4
2387 CC
Engine Capacity
1997 CC
197 bhp
at 4000 rpm
Power
154 bhp
at 5000 rpm
Alfa Romeo Spider 2.4 JTDM 20V
197 bhp
154 bhp
BMW Z4 Roadster sDrive18i
400 NM
at 2000 rpm
Max. Torque
240 NM
at 1250 rpm
Alfa Romeo Spider 2.4 JTDM 20V
400 NM
240 NM
BMW Z4 Roadster sDrive18i
Performance
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
140 mph
Maximum Speed
137 mph
8.5 sec
Acceleration 0 to 62 mph
8.1 sec
62 mph
62
mph
mph
118 m
0.000 sec

Alfa Romeo Spider 2.4 JTDM 20V
62 mph
62
mph
mph
113 m
0.000 sec

BMW Z4 Roadster sDrive18i
▶ REPLAY
8.78 kg/bhp
Weight-to-Power Ratio
9.71 kg/bhp
Alfa Romeo Spider 2.4 JTDM 20V
8.78 kg/bhp
9.71 kg/bhp
BMW Z4 Roadster sDrive18i
Fuel Economy / Emissions
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
Fuel Economy
36 mpg
combined
42 mpg
Alfa Romeo Spider 2.4 JTDM 20V
36 mpg
42 mpg
BMW Z4 Roadster sDrive18i
25 mpg
city
30 mpg
No data
motorway
No data
70 L
Fuel Tank Capacity
55 L
551 mi
Range
503 mi
Alfa Romeo Spider 2.4 JTDM 20V
551 mi
503 mi
BMW Z4 Roadster sDrive18i
Environmental Impact
162.5 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).
128.7 kWh
Alfa Romeo Spider 2.4 JTDM 20V
162.5 kWh
128.7 kWh
BMW Z4 Roadster sDrive18i
Euro 4
Emission Standard
Euro 6b (NEFZ)
208 g/km (NEFZ)
CO2 Emissions
159 g/km (NEFZ)
Practical Convenience
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive18i
2
Doors
2
2
No. of Seats
2
275 kg
Maximum Payload
255 kg
253 L
Boot Capacity
310 L






No data
Boot Capacity (Seats Down)
No data