The Comparative Analysis :

BMW Z4 Roadster sDrive18i Automatic (13 - 16) vs. Alfa Romeo Spider 2.4 JTDM 20V DPF (07 - 08)

€ 36,600
BMW Z4 Roadster sDrive18i Automatic (13 - 16) BMW Z4 Roadster sDrive18i
€ 38,200
 Alfa Romeo Spider 2.4 JTDM 20V DPF (07 - 08) Alfa Romeo Spider 2.4 JTDM 20V DPF
€ 36,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 38,200

ⓘ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 6.1 inches shorter, 1.6 inches narrower and 1.1 inches lower than the Alfa Romeo Spider 2.4 JTDM 20V DPF.
BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
50.8
Blueprint BMW Z4 Roadster sDrive18i Automatic (13 - 16)
70.5
76.8
51.9
Blueprint Alfa Romeo Spider 2.4 JTDM 20V DPF (07 - 08)
72
80.1
70.5 in
Width
72 in
76.8 in
Width Incl. Mirrors
80.1 in
50.8 in
Height
51.9 in
Blueprint BMW Z4 Roadster sDrive18i Automatic (13 - 16)
98.3
166.9
Blueprint Alfa Romeo Spider 2.4 JTDM 20V DPF (07 - 08)
99.5
173
166.9 in
Length
173 in
98.3 in
Wheelbase
99.5 in

Vehicle Weight

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
3296 lb
Curb Weight
3825 lb
3858 lb
Gross Vehicle
Weight
4321 lb
BMW Z4 Roadster sDrive18i Automatic (13 - 16)
Weight Difference:
529 lb
13.83 %
Alfa Romeo Spider 2.4 JTDM 20V DPF (07 - 08)

General

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
E89
Generation
Typ 939
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Front-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
Straight-four gasoline 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
2 L / 98 cu in
Displacement
2.4 L / 117 cu in
154 hp
at 5000 rpm
Power
197 hp
at 4000 rpm
BMW Z4 Roadster sDrive18i
154 hp
197 hp
Alfa Romeo Spider 2.4 JTDM 20V DPF
177 lb‑ft
at 1250 rpm
Max. Torque
295 lb‑ft
at 2000 rpm
BMW Z4 Roadster sDrive18i
177 lb‑ft
295 lb‑ft
Alfa Romeo Spider 2.4 JTDM 20V DPF

Performance

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
137 mph
Maximum Speed
142 mph
8.1 sec
Acceleration 0 to 62 mph
8.4 sec
62 mph 62
mph

371 ft
0.000 sec

BMW Z4 Roadster sDrive18i

62 mph 62
mph

384 ft
0.000 sec

Alfa Romeo Spider 2.4 JTDM 20V DPF

▶ REPLAY
21.4 lb/hp
Weight-to-Power Ratio
19.42 lb/hp
BMW Z4 Roadster sDrive18i
21.4 lb/hp
19.42 lb/hp
Alfa Romeo Spider 2.4 JTDM 20V DPF

Fuel Economy / Emissions

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
Fuel Economy
35 mpg
combined
35 mpg
BMW Z4 Roadster sDrive18i
35 mpg
35 mpg
Alfa Romeo Spider 2.4 JTDM 20V DPF
25 mpg
city
26 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
503 mi
Range
639 mi
BMW Z4 Roadster sDrive18i
503 mi
639 mi
Alfa Romeo Spider 2.4 JTDM 20V DPF
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).
139.9 kWh
BMW Z4 Roadster sDrive18i
128.7 kWh
139.9 kWh
Alfa Romeo Spider 2.4 JTDM 20V DPF
Euro 6b (NEFZ)
Emission Standard
Euro 4
256 g/mi (NEFZ)
CO2 Emissions
288 g/mi (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive18i
Alfa Romeo Spider 2.4 JTDM 20V DPF
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
496 lb
8.8 cu ft
Trunk Volume
7.2 cu ft
No data
Cargo Volume (Seats Down)
No data