The Comparative Analysis :
ALPINA Roadster S (03 - 05) vs. BMW Z4 Roadster sDrive23i (09 - 11)
€ 55,000
€ 36,400
€ 55,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 36,400
ⓘ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 ALPINA Roadster S is 5.8 inches shorter, 0.4 inches narrower and 0.2 inches taller than the BMW Z4 Roadster sDrive23i.
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
51
70.1
78
50.8
70.5
76.8
70.1 in
Width
70.5 in
78 in
Width Incl. Mirrors
76.8 in
51 in
Height
50.8 in
98.2
161.1
98.3
166.9
161.1 in
Length
166.9 in
98.2 in
Wheelbase
98.3 in
Vehicle Weight
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
2910 lb
Curb Weight
3263 lb
3571 lb
Gross Vehicle
Weight
Weight
3825 lb
Weight Difference:
353 lb
10.82 %
General
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
E85
Generation
E89
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
Engine Series
BMW N52
E5/1
Engine Code
N52-B25
4
Valves
4
6
Cylinders
6
3.3 L / 161 cu in
Displacement
2.5 L / 122 cu in
296 hp
at 6300 rpm
Power
201 hp
at 6300 rpm
ALPINA Roadster S
296 hp
201 hp
BMW Z4 Roadster sDrive23i
267 lb‑ft
at 4800 rpm
Max. Torque
184 lb‑ft
at 2750 rpm
ALPINA Roadster S
267 lb‑ft
184 lb‑ft
BMW Z4 Roadster sDrive23i
Performance
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
165 mph
Maximum Speed
150 mph
5.3 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph
62
mph
mph
243 ft
0.000 sec
ALPINA Roadster S
62 mph
62
mph
mph
302 ft
0.000 sec
BMW Z4 Roadster sDrive23i
▶ REPLAY
9.83 lb/hp
Weight-to-Power Ratio
16.23 lb/hp
ALPINA Roadster S
9.83 lb/hp
16.23 lb/hp
BMW Z4 Roadster sDrive23i
Fuel Economy / Emissions
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
Fuel Economy
24 mpg
combined
28 mpg
ALPINA Roadster S
24 mpg
28 mpg
BMW Z4 Roadster sDrive23i
15 mpg
city
19 mpg
No data
highway
No data
14.5 gal
Fuel Tank Capacity
14.5 gal
345 mi
Range
402 mi
ALPINA Roadster S
345 mi
402 mi
BMW Z4 Roadster sDrive23i
Environmental Impact
187.5 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).
161.1 kWh
ALPINA Roadster S
187.5 kWh
161.1 kWh
BMW Z4 Roadster sDrive23i
Euro 4
Emission Standard
Euro 5
383 g/mi (NEFZ)
CO2 Emissions
320 g/mi (NEFZ)
Practical Convenience
ALPINA Roadster S
BMW Z4 Roadster sDrive23i
2
Doors
2
2
No. of Seats
2
661 lb
Maximum Payload
562 lb
7.4 cu ft
Trunk Volume
8.8 cu ft
No data
Cargo Volume (Seats Down)
No data
