The Comparative Analysis :

BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..) vs. Alfa Romeo Spider 1.8 TBi 16V (09 - 10)

€ 43,300
BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..) BMW Z4 Roadster sDrive20i
€ 32,000
 Alfa Romeo Spider 1.8 TBi 16V (09 - 10) Alfa Romeo Spider 1.8 TBi 16V
€ 43,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 32,000

ⓘ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 sDrive20i is 2.7 inches shorter, 1.3 inches wider and 0.6 inches lower than the Alfa Romeo Spider 1.8 TBi 16V.
BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
51.3
Blueprint BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)
73.4
79.7
51.9
Blueprint Alfa Romeo Spider 1.8 TBi 16V (09 - 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 sDrive20i Steptronic Sport (19 - ..)
97.2
170.2
Blueprint Alfa Romeo Spider 1.8 TBi 16V (09 - 10)
99.5
173
170.2 in
Length
173 in
97.2 in
Wheelbase
99.5 in

Vehicle Weight

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
3296 lb
Curb Weight
3450 lb
3836 lb
Gross Vehicle
Weight
4057 lb
BMW Z4 Roadster sDrive20i Steptronic Sport (19 - ..)
Weight Difference:
154 lb
4.46 %
Alfa Romeo Spider 1.8 TBi 16V (09 - 10)

General

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
G29
Generation
Typ 939
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded
Rear-wheel drive
Drivetrain
Front-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-four gasoline engine with tur­bo­charger
BMW B48
Engine Series
B48-B20
Engine Code
939 B1.000
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
1.7 L / 83 cu in
194 hp
at 4500 rpm
Power
197 hp
at 5000 rpm
BMW Z4 Roadster sDrive20i
194 hp
197 hp
Alfa Romeo Spider 1.8 TBi 16V
236 lb‑ft
at 1450 rpm
Max. Torque
236 lb‑ft
at 1400 rpm
BMW Z4 Roadster sDrive20i
236 lb‑ft
236 lb‑ft
Alfa Romeo Spider 1.8 TBi 16V

Performance

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
149 mph
Maximum Speed
146 mph
6.6 sec
Acceleration 0 to 62 mph
7.8 sec
62 mph 62
mph

302 ft
0.000 sec

BMW Z4 Roadster sDrive20i

62 mph 62
mph

354 ft
0.000 sec

Alfa Romeo Spider 1.8 TBi 16V

▶ REPLAY
16.99 lb/hp
Weight-to-Power Ratio
17.51 lb/hp
BMW Z4 Roadster sDrive20i
16.99 lb/hp
17.51 lb/hp
Alfa Romeo Spider 1.8 TBi 16V

Fuel Economy / Emissions

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
Fuel Economy
39 mpg
combined
29 mpg
BMW Z4 Roadster sDrive20i
39 mpg
29 mpg
Alfa Romeo Spider 1.8 TBi 16V
32 mpg
city
20 mpg
No data
highway
No data
Kraftstoffanzeige
13.7 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
529 mi
Range
531 mi
BMW Z4 Roadster sDrive20i
529 mi
531 mi
Alfa Romeo Spider 1.8 TBi 16V
Environmental Impact
115.6 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).
155.3 kWh
BMW Z4 Roadster sDrive20i
115.6 kWh
155.3 kWh
Alfa Romeo Spider 1.8 TBi 16V
Euro 6d-TEMP-EVAP (WLTP)
Emission Standard
Euro 5
269 g/mi (WLTP)
CO2 Emissions
309 g/mi (NEFZ)

Practical Convenience

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
2
Doors
2
2
No. of Seats
2
540 lb
Maximum Payload
606 lb
8 cu ft
Trunk Volume
7.2 cu ft
No data
Cargo Volume (Seats Down)
No data