Car comparison

Alpina Roadster S 3.3 i 24VvsBMW 1 Series Convertible (E88) 135i

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Alpina Roadster S

3.3 i 24V

300 hp3346 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible2003-2006

BMW 1 Series Convertible (E88)

135i

306 hp2979 ccGasolineRWDManualTwin-turboCabriolet / convertible2008-2010

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

BMW 1 Series Convertible (E88) 135i

Most powerful
306 hp
228 kW
Highest torque
400 Nm
295 lb-ft
Lowest city consumption
13.3 L/100 km
17.7 mpg US
21.2 mpg UK
Largest trunk
260 L
Best overall score
58/100
Best economy score
82/100
Best practicality score
43/100

Alpina Roadster S 3.3 i 24V

Quickest 0-100 km/h
5.3 s
Fastest top speed
265 km/h
165 mph
Lightest
1,320 kg
2,910 lb
Best power-to-weight
227 hp/t
169 kW/t
4.4 kg/hp
Lowest highway consumption
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
Best performance score
67/100

Specification comparison

Specification comparison
Model	AlpinaRoadster S3.3 i 24V	BMW1 Series Convertible (E88)135i
Power	300hp224kW	306hp228kW
Torque	362Nm267lb-ft	400Nm295lb-ft
Curb weight	1,320kg2,910lb	1,600kg3,527lb
Gross weight	1,620kg3,571lb	2,040kg4,497lb
Top speed	265 km/h 165 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	66.9s99% target: 262 km/h / 163 mph Calculated	79.1s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	5.3s	5.6s
0-200 km/h	17.8s Calculated	20.6s Calculated
0-60 mph	5.0s Calculated	5.3s Calculated
Fuel consumption	-	9.4L/100 km25mpg US30.1mpg UK
Fuel consumption city	15L/100 km15.7mpg US18.8mpg UK	13.3L/100 km17.7mpg US21.2mpg UK
Fuel consumption highway	7L/100 km33.6mpg US40.4mpg UK	7.1L/100 km33.1mpg US39.8mpg UK
Quarter mile	13.4s Calculated	13.7s Calculated
Power-to-weight	227hp/t169kW/t103hp/1000 lb Calculated	191hp/t143kW/t87hp/1000 lb Calculated
Torque-to-weight	274Nm/t183lb-ft/ton Calculated	250Nm/t167lb-ft/ton Calculated
Estimated range	-	564km350mi Calculated
Displacement	3,346cc204cu in	2,979cc182cu in
Length	4,090mm161in	4,360mm172in
Width	1,780mm70in	1,748mm69in
Height	1,300mm51in	1,411mm56in
Wheelbase	2,500mm98in	2,660mm105in
Front track	1,470mm58in	1,474mm58in
Rear track	1,520mm60in	1,507mm59in
Ground clearance	-	140mm6in
Trunk volume	240L	260L
Max trunk volume	260L	305L
Doors	2	2
Seats	2	4
Fuel tank	55L	53L

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Alpina Roadster S 3.3 i 24VBMW 1 Series Convertible (E88) 135iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
AlpinaRoadster S3.3 i 24V	6,300 rpm	4,800 rpm	6,550 rpm
BMW1 Series Convertible (E88)135i	5,800 rpm	1,300-5,000 rpm	6,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	AlpinaRoadster S3.3 i 24V	BMW1 Series Convertible (E88)135i
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.0 s	5.3 s
0-100 km/h 0-62 mph	5.3 s	5.6 s
0-200 km/h 0-124 mph	17.8 s	20.6 s
Top speed	265 km/h 165 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Limited
	Drag race simulation
60 ft 18 m	2.3 s	2.2 s
330 ft 101 m	5.9 s	6.0 s
1/8 mile 201 m	8.8 s	9.0 s
1000 ft 305 m	11.3 s	11.6 s
1/4 mile 402 m	13.4 s	13.7 s
Trap speed 1/4 mile 402 m	176 km/h 109 mph	168 km/h 104 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
Vehicle	Value
AlpinaRoadster S3.3 i 24V	300 hp 224 kW
BMW1 Series Convertible (E88)135i	306 hp 228 kW

BMW 1 Series Convertible (E88) 135i has 6 hp more than Alpina Roadster S 3.3 i 24V.

The biggest power difference is between Alpina Roadster S 3.3 i 24V and BMW 1 Series Convertible (E88) 135i: 6 hp (4 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
Vehicle	Value
AlpinaRoadster S3.3 i 24V	362 Nm 267 lb-ft
BMW1 Series Convertible (E88)135i	400 Nm 295 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
Vehicle	Value
AlpinaRoadster S3.3 i 24V	1,320 kg 2,910 lb
BMW1 Series Convertible (E88)135i	1,600 kg 3,527 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
AlpinaRoadster S3.3 i 24V	265 km/h 165 mph
BMW1 Series Convertible (E88)135i	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
Vehicle	Value
AlpinaRoadster S3.3 i 24V	5.3 s
BMW1 Series Convertible (E88)135i	5.6 s

Although BMW 1 Series Convertible (E88) 135i has more power, Alpina Roadster S 3.3 i 24V is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Alpina Roadster S 3.3 i 24V and BMW 1 Series Convertible (E88) 135i: 0.3 s.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
AlpinaRoadster S3.3 i 24V	227 hp/t 169 kW/t 4.4 kg/hp
BMW1 Series Convertible (E88)135i	191 hp/t 143 kW/t 5.2 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
AlpinaRoadster S3.3 i 24V	300 hp 224 kW	5.3 s	265 km/h 165 mph
BMW1 Series Convertible (E88)135i	306 hp 228 kW	5.6 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

AlpinaRoadster S3.3 i 24V

Power	300 hp 224 kW
0-100 km/h	5.3 s
Top speed 265 km/h 165 mph

Doors/seats	2 doors 2 seats
Trunk	240 L 8.5 cu ft
Length	4,090 mm 161.0 in
Height	1,300 mm 51.2 in

BMW1 Series Convertible (E88)135i

Power	306 hp 228 kW
0-100 km/h	5.6 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,360 mm 171.7 in
Height	1,411 mm 55.6 in

Detailed score breakdown

Vehicle

AlpinaRoadster S3.3 i 24V

BMW1 Series Convertible (E88)135i

Power

300 hp

224 kW

306 hp

228 kW

Torque

362 Nm

267 lb-ft

400 Nm

295 lb-ft

Acceleration

5.3 s

5.6 s

Top speed

265 km/h

165 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,320 kg

2,910 lb

1,600 kg

3,527 lb

Fuel consumption

9.4 L/100 km

25.0 mpg US

30.1 mpg UK

Practicality

Doors/seats	2 doors 2 seats
Trunk	240 L 8.5 cu ft
Length	4,090 mm 161.0 in
Height	1,300 mm 51.2 in

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,360 mm 171.7 in
Height	1,411 mm 55.6 in

Range score

564 km

350 mi

Trunk score

240 L

8.5 cu ft

260 L

9.2 cu ft

Power-to-weight score

227 hp/t

169 kW/t

4.4 kg/hp

191 hp/t

143 kW/t

5.2 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
Vehicle	BMW 1 Series Convertible (E88) 135i
Consumption	9.4 L/100 km25 mpg US30.1 mpg UK
Cost / 100 km	16.45 LC100 km
Cost / 100 mi	26.47 LC100 mi
Annual fuel used	1,410 L372 US gal310 UK gal
Annual fuel cost	2,468 LC/year