The Comparative Analysis :
Alfa Romeo Spider 2.4 JTDM 20V (08 - 10) vs. BMW Z4 Roadster sDrive23i (09 - 11)
€ 38,400

€ 36,400

€ 38,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 36,400
ⓘ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 sDrive23i.
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive23i
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 sDrive23i
1710 kg
Kerb Weight
1480 kg
1985 kg
Gross Vehicle
Weight
Weight
1735 kg

Weight Difference:
230 kg
13.45 %

General
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive23i
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 manual transmission
Transmission
6-speed manual transmission
Engine
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive23i
Straight-five diesel engine with turbocharger
Engine Type
Straight-six petrol engine (naturally aspirated engine)
Engine Series
BMW N52
939 A3.000
Engine Code
N52-B25

4
Valves
4
5
Cylinders
6
2387 CC
Engine Capacity
2497 CC
206 bhp
at 4000 rpm
Power
201 bhp
at 6300 rpm
Alfa Romeo Spider 2.4 JTDM 20V
206 bhp
201 bhp
BMW Z4 Roadster sDrive23i
400 NM
at 1500 rpm
Max. Torque
250 NM
at 2750 rpm
Alfa Romeo Spider 2.4 JTDM 20V
400 NM
250 NM
BMW Z4 Roadster sDrive23i
Performance
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive23i
144 mph
Maximum Speed
150 mph
8.1 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
113 m
0.000 sec

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

BMW Z4 Roadster sDrive23i
▶ REPLAY
8.3 kg/bhp
Weight-to-Power Ratio
7.36 kg/bhp
Alfa Romeo Spider 2.4 JTDM 20V
8.3 kg/bhp
7.36 kg/bhp
BMW Z4 Roadster sDrive23i
Fuel Economy / Emissions
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive23i
Fuel Economy
42 mpg
combined
33 mpg
Alfa Romeo Spider 2.4 JTDM 20V
42 mpg
33 mpg
BMW Z4 Roadster sDrive23i
31 mpg
city
23 mpg
No data
motorway
No data
70 L
Fuel Tank Capacity
55 L
639 mi
Range
402 mi
Alfa Romeo Spider 2.4 JTDM 20V
639 mi
402 mi
BMW Z4 Roadster sDrive23i
Environmental Impact
139.9 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).
161.1 kWh
Alfa Romeo Spider 2.4 JTDM 20V
139.9 kWh
161.1 kWh
BMW Z4 Roadster sDrive23i
Euro 4
Emission Standard
Euro 5
179 g/km (NEFZ)
CO2 Emissions
199 g/km (NEFZ)
Practical Convenience
Alfa Romeo Spider 2.4 JTDM 20V
BMW Z4 Roadster sDrive23i
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