The Comparative Analysis :

BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..) vs. Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)

€ 49,000
BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..) BMW Z4 Roadster sDrive30i
€ 40,500
 Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10) Alfa Romeo Spider 2.4 JTDM 20V
€ 49,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 40,500

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

Vehicle Dimensions

The dimensions of these vehicles differ slightly. The BMW Z4 Roadster sDrive30i is 2.7 inches shorter, 1.3 inches wider and 0.6 inches lower than the Alfa Romeo Spider 2.4 JTDM 20V.
BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
51.3
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
73.4
79.7
51.9
Blueprint Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)
72
80.1
73.4 in
Width
72 in
79.7 in
Width Incl. Mirrors
80.1 in
51.3 in
Height
51.9 in
Blueprint BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
97.2
170.2
Blueprint Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)
99.5
173
170.2 in
Length
173 in
97.2 in
Wheelbase
99.5 in

Vehicle Weight

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
3318 lb
Curb Weight
3814 lb
3836 lb
Gross Vehicle
Weight
4420 lb
BMW Z4 Roadster sDrive30i Steptronic Sport (19 - ..)
Weight Difference:
496 lb
13 %
Alfa Romeo Spider 2.4 JTDM 20V Q-Tronic (08 - 10)

General

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
G29
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 automatic transmission

Engine

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-five diesel engine with tur­bo­charger
BMW B48
Engine Series
B48-B20
Engine Code
939 A3.000
4
Valves
4
4
Cylinders
5
2 L / 98 cu in
Displacement
2.4 L / 117 cu in
254 hp
at 5000 rpm
Power
197 hp
at 4000 rpm
BMW Z4 Roadster sDrive30i
254 hp
197 hp
Alfa Romeo Spider 2.4 JTDM 20V
295 lb‑ft
at 1550 rpm
Max. Torque
295 lb‑ft
at 2000 rpm
BMW Z4 Roadster sDrive30i
295 lb‑ft
295 lb‑ft
Alfa Romeo Spider 2.4 JTDM 20V

Performance

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
155 mph
Maximum Speed
140 mph
5.4 sec
Acceleration 0 to 62 mph
8.5 sec
62 mph 62
mph

246 ft
0.000 sec

BMW Z4 Roadster sDrive30i

62 mph 62
mph

387 ft
0.000 sec

Alfa Romeo Spider 2.4 JTDM 20V

▶ REPLAY
13.06 lb/hp
Weight-to-Power Ratio
19.36 lb/hp
BMW Z4 Roadster sDrive30i
13.06 lb/hp
19.36 lb/hp
Alfa Romeo Spider 2.4 JTDM 20V

Fuel Economy / Emissions

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
Fuel Economy
39 mpg
combined
30 mpg
BMW Z4 Roadster sDrive30i
39 mpg
30 mpg
Alfa Romeo Spider 2.4 JTDM 20V
32 mpg
city
21 mpg
No data
highway
No data
Kraftstoffanzeige
13.7 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
539 mi
Range
551 mi
BMW Z4 Roadster sDrive30i
539 mi
551 mi
Alfa Romeo Spider 2.4 JTDM 20V
Environmental Impact
113.6 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).
162.5 kWh
BMW Z4 Roadster sDrive30i
113.6 kWh
162.5 kWh
Alfa Romeo Spider 2.4 JTDM 20V
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
267 g/mi (WLTP)
CO2 Emissions
335 g/mi (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive30i
Alfa Romeo Spider 2.4 JTDM 20V
2
Doors
2
2
No. of Seats
2
518 lb
Maximum Payload
606 lb
8 cu ft
Trunk Volume
7.2 cu ft
No data
Cargo Volume (Seats Down)
No data