The Comparative Analysis :

BMW Z4 Roadster sDrive18i Automatic (13 - 16) vs. Alfa Romeo Spider 2.0 JTDM 16V (09 - 10)

€ 36,600
BMW Z4 Roadster sDrive18i Automatic (13 - 16) BMW Z4 Roadster sDrive18i
€ 35,900
 Alfa Romeo Spider 2.0 JTDM 16V (09 - 10) Alfa Romeo Spider 2.0 JTDM 16V
€ 36,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 35,900

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

Vehicle Dimensions

The BMW Z4 Roadster sDrive18i 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 2.0 JTDM 16V.
BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
1291
Blueprint BMW Z4 Roadster sDrive18i Automatic (13 - 16)
1790
1951
1318
Blueprint Alfa Romeo Spider 2.0 JTDM 16V (09 - 10)
1830
2035
1790 mm
Width
1830 mm
1951 mm
Width Incl. Mirrors
2035 mm
1291 mm
Height
1318 mm
Blueprint BMW Z4 Roadster sDrive18i Automatic (13 - 16)
2496
4239
Blueprint Alfa Romeo Spider 2.0 JTDM 16V (09 - 10)
2528
4393
4239 mm
Length
4393 mm
2496 mm
Wheelbase
2528 mm

Vehicle Weight

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
1495 kg
Kerb Weight
1615 kg
1750 kg
Gross Vehicle
Weight
1890 kg
BMW Z4 Roadster sDrive18i Automatic (13 - 16)
Weight Difference:
120 kg
7.43 %
Alfa Romeo Spider 2.0 JTDM 16V (09 - 10)

General

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
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 manual transmission

Engine

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
Straight-four petrol engine with tur­bo­charger
Engine Type
Straight-five diesel engine with tur­bo­charger
BMW N20
Engine Series
N20-B20
Engine Code
939 B3.000
4
Valves
4
4
Cylinders
5
1997 CC
Engine Capacity
1956 CC
154 bhp
at 5000 rpm
Power
168 bhp
at 4000 rpm
BMW Z4 Roadster sDrive18i
154 bhp
168 bhp
Alfa Romeo Spider 2.0 JTDM 16V
240 NM
at 1250 rpm
Max. Torque
360 NM
at 1750 rpm
BMW Z4 Roadster sDrive18i
240 NM
360 NM
Alfa Romeo Spider 2.0 JTDM 16V

Performance

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
137 mph
Maximum Speed
135 mph
8.1 sec
Acceleration 0 to 62 mph
9 sec
62 mph 62
mph

113 m
0.000 sec

BMW Z4 Roadster sDrive18i

62 mph 62
mph

125 m
0.000 sec

Alfa Romeo Spider 2.0 JTDM 16V

▶ REPLAY
9.71 kg/bhp
Weight-to-Power Ratio
9.61 kg/bhp
BMW Z4 Roadster sDrive18i
9.71 kg/bhp
9.61 kg/bhp
Alfa Romeo Spider 2.0 JTDM 16V

Fuel Economy / Emissions

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
Fuel Economy
42 mpg
combined
52 mpg
BMW Z4 Roadster sDrive18i
42 mpg
52 mpg
Alfa Romeo Spider 2.0 JTDM 16V
30 mpg
city
40 mpg
No data
motorway
No data
Kraftstoffanzeige
55 L
Fuel Tank Capacity
70 L
Kraftstoffanzeige
503 mi
Range
805 mi
BMW Z4 Roadster sDrive18i
503 mi
805 mi
Alfa Romeo Spider 2.0 JTDM 16V
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).
111 kWh
BMW Z4 Roadster sDrive18i
128.7 kWh
111 kWh
Alfa Romeo Spider 2.0 JTDM 16V
Euro 6b (NEFZ)
Emission Standard
Euro 5
159 g/km (NEFZ)
CO2 Emissions
142 g/km (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.0 JTDM 16V
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