The Comparative Analysis :

BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11) vs. Alfa Romeo Spider 2.4 JTDM 20V (08 - 10)

€ 45,800
BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11) BMW Z4 Roadster sDrive30i
€ 38,400
 Alfa Romeo Spider 2.4 JTDM 20V (08 - 10) Alfa Romeo Spider 2.4 JTDM 20V
€ 45,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 38,400

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

Vehicle Dimensions

The BMW Z4 Roadster sDrive30i 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 sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
1291
Blueprint BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11)
1790
1951
1318
Blueprint Alfa Romeo Spider 2.4 JTDM 20V (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 sDrive30i Sport-Automatic (09 - 11)
2496
4239
Blueprint Alfa Romeo Spider 2.4 JTDM 20V (08 - 10)
2528
4393
4239 mm
Length
4393 mm
2496 mm
Wheelbase
2528 mm

Vehicle Weight

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
1505 kg
Kerb Weight
1710 kg
1760 kg
Gross Vehicle
Weight
1985 kg
BMW Z4 Roadster sDrive30i Sport-Automatic (09 - 11)
Weight Difference:
205 kg
11.99 %
Alfa Romeo Spider 2.4 JTDM 20V (08 - 10)

General

BMW Z4 Roadster sDrive30i
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
6-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
Straight-six petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
Engine Type
Straight-five diesel engine with tur­bo­charger
BMW N52
Engine Series
N52-B30
Engine Code
939 A3.000
4
Valves
4
6
Cylinders
5
2996 CC
Engine Capacity
2387 CC
254 bhp
at 6600 rpm
Power
206 bhp
at 4000 rpm
BMW Z4 Roadster sDrive30i
254 bhp
206 bhp
Alfa Romeo Spider 2.4 JTDM 20V
310 NM
at 2600 rpm
Max. Torque
400 NM
at 1500 rpm
BMW Z4 Roadster sDrive30i
310 NM
400 NM
Alfa Romeo Spider 2.4 JTDM 20V

Performance

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
155 mph
Maximum Speed
144 mph
6.1 sec
Acceleration 0 to 62 mph
8.1 sec
62 mph 62
mph

85 m
0.000 sec

BMW Z4 Roadster sDrive30i

62 mph 62
mph

113 m
0.000 sec

Alfa Romeo Spider 2.4 JTDM 20V

▶ REPLAY
5.93 kg/bhp
Weight-to-Power Ratio
8.3 kg/bhp
BMW Z4 Roadster sDrive30i
5.93 kg/bhp
8.3 kg/bhp
Alfa Romeo Spider 2.4 JTDM 20V

Fuel Economy / Emissions

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
Fuel Economy
34 mpg
combined
42 mpg
BMW Z4 Roadster sDrive30i
34 mpg
42 mpg
Alfa Romeo Spider 2.4 JTDM 20V
24 mpg
city
31 mpg
No data
motorway
No data
Kraftstoffanzeige
55 L
Fuel Tank Capacity
70 L
Kraftstoffanzeige
412 mi
Range
639 mi
BMW Z4 Roadster sDrive30i
412 mi
639 mi
Alfa Romeo Spider 2.4 JTDM 20V
Environmental Impact
157.2 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).
139.9 kWh
BMW Z4 Roadster sDrive30i
157.2 kWh
139.9 kWh
Alfa Romeo Spider 2.4 JTDM 20V
Euro 5
Emission Standard
Euro 4
195 g/km (NEFZ)
CO2 Emissions
179 g/km (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive30i
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