The Comparative Analysis :
BMW Z4 Roadster M40i Steptronic Sport (19 - ..) vs. Alfa Romeo Spider 3.2 JTS V6 24V Q4 Q-Tronic (06 - 10)
€ 61,000
€ 45,700
€ 61,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 45,700
ⓘ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 M40i is 2.7 inches shorter, 1.3 inches wider and 0.6 inches lower than the Alfa Romeo Spider 3.2 JTS V6 24V.
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
51.3
73.4
79.7
51.9
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
97.2
170.2
99.5
173
170.2 in
Length
173 in
97.2 in
Wheelbase
99.5 in
Vehicle Weight
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
3549 lb
Curb Weight
3880 lb
4101 lb
Gross Vehicle
Weight
Weight
4486 lb
Weight Difference:
331 lb
8.53 %
General
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
G29
Generation
Typ 939
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
Straight-six gasoline engine with two turbochargers (biturbo)
Engine Type
V6 gasoline engine (naturally aspirated engine)
BMW B58
Engine Series
B58-B30
Engine Code
939 A.000
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.2 L / 157 cu in
335 hp
at 5000 rpm
Power
256 hp
at 6300 rpm
BMW Z4 Roadster M40i
335 hp
256 hp
Alfa Romeo Spider 3.2 JTS V6 24V
369 lb‑ft
at 1600 rpm
Max. Torque
237 lb‑ft
at 4500 rpm
BMW Z4 Roadster M40i
369 lb‑ft
237 lb‑ft
Alfa Romeo Spider 3.2 JTS V6 24V
Performance
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
155 mph
Maximum Speed
152 mph
4.5 sec
Acceleration 0 to 62 mph
7.2 sec
62 mph
62
mph
mph
207 ft
0.000 sec
BMW Z4 Roadster M40i
62 mph
62
mph
mph
328 ft
0.000 sec
Alfa Romeo Spider 3.2 JTS V6 24V
▶ REPLAY
10.59 lb/hp
Weight-to-Power Ratio
15.16 lb/hp
BMW Z4 Roadster M40i
10.59 lb/hp
15.16 lb/hp
Alfa Romeo Spider 3.2 JTS V6 24V
Fuel Economy / Emissions
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
Fuel Economy
33 mpg
combined
19 mpg
BMW Z4 Roadster M40i
33 mpg
19 mpg
Alfa Romeo Spider 3.2 JTS V6 24V
26 mpg
city
13 mpg
No data
highway
No data
13.7 gal
Fuel Tank Capacity
18.5 gal
455 mi
Range
357 mi
BMW Z4 Roadster M40i
455 mi
357 mi
Alfa Romeo Spider 3.2 JTS V6 24V
Environmental Impact
134.5 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).
231.1 kWh
BMW Z4 Roadster M40i
134.5 kWh
231.1 kWh
Alfa Romeo Spider 3.2 JTS V6 24V
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
307 g/mi (WLTP)
CO2 Emissions
463 g/mi (NEFZ)
Practical Convenience
BMW Z4 Roadster M40i
Alfa Romeo Spider 3.2 JTS V6 24V
2
Doors
2
2
No. of Seats
2
551 lb
Maximum Payload
606 lb
8 cu ft
Trunk Volume
7.2 cu ft
No data
Cargo Volume (Seats Down)
No data
