The Comparative Analysis :

BMW Z4 Roadster sDrive20i (11 - 13) vs. Alfa Romeo Spider 1.8 TBi 16V (09 - 10)

€ 36,600
BMW Z4 Roadster sDrive20i (11 - 13) BMW Z4 Roadster sDrive20i
€ 32,000
 Alfa Romeo Spider 1.8 TBi 16V (09 - 10) Alfa Romeo Spider 1.8 TBi 16V
€ 36,600
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 BMW Z4 Roadster sDrive20i 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 1.8 TBi 16V.
BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
50.8
Blueprint BMW Z4 Roadster sDrive20i (11 - 13)
70.5
76.8
51.9
Blueprint Alfa Romeo Spider 1.8 TBi 16V (09 - 10)
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 sDrive20i (11 - 13)
98.3
166.9
Blueprint Alfa Romeo Spider 1.8 TBi 16V (09 - 10)
99.5
173
166.9 in
Length
173 in
98.3 in
Wheelbase
99.5 in

Vehicle Weight

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
3241 lb
Curb Weight
3450 lb
3803 lb
Gross Vehicle
Weight
4057 lb
BMW Z4 Roadster sDrive20i (11 - 13)
Weight Difference:
209 lb
6.06 %
Alfa Romeo Spider 1.8 TBi 16V (09 - 10)

General

BMW Z4 Roadster sDrive20i
Alfa Romeo Spider 1.8 TBi 16V
E89
Generation
Typ 939
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded
Rear-wheel drive
Drivetrain
Front-wheel drive
6-speed manual 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 N20
Engine Series
N20-B20
Engine Code
939 B1.000
4
Valves
4
4
Cylinders
4
2 L / 98 cu in
Displacement
1.7 L / 83 cu in
181 hp
at 5000 rpm
Power
197 hp
at 5000 rpm
BMW Z4 Roadster sDrive20i
181 hp
197 hp
Alfa Romeo Spider 1.8 TBi 16V
199 lb‑ft
at 1250 rpm
Max. Torque
236 lb‑ft
at 1400 rpm
BMW Z4 Roadster sDrive20i
199 lb‑ft
236 lb‑ft
Alfa Romeo Spider 1.8 TBi 16V

Performance

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

315 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
17.91 lb/hp
Weight-to-Power Ratio
17.51 lb/hp
BMW Z4 Roadster sDrive20i
17.91 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
35 mpg
combined
29 mpg
BMW Z4 Roadster sDrive20i
35 mpg
29 mpg
Alfa Romeo Spider 1.8 TBi 16V
26 mpg
city
20 mpg
No data
highway
No data
Kraftstoffanzeige
14.5 gal
Fuel Tank Capacity
18.5 gal
Kraftstoffanzeige
503 mi
Range
531 mi
BMW Z4 Roadster sDrive20i
503 mi
531 mi
Alfa Romeo Spider 1.8 TBi 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).
155.3 kWh
BMW Z4 Roadster sDrive20i
128.7 kWh
155.3 kWh
Alfa Romeo Spider 1.8 TBi 16V
Euro 5
Emission Standard
Euro 5
256 g/mi (NEFZ)
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
562 lb
Maximum Payload
606 lb
8.8 cu ft
Trunk Volume
7.2 cu ft
No data
Cargo Volume (Seats Down)
No data