Car comparison

Alpina Roadster S 3.3 i 24VvsBMW 6 Series Convertible (E64) · Facelift 2007 635d

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 6 Series Convertible (E64) · Facelift 2007

635d

286 hp2993 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2007-2010

Comparison overview

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

BMW 6 Series Convertible (E64) Facelift 2007 635d

Highest torque
580 Nm
428 lb-ft
Lowest city consumption
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Lowest highway consumption
5.8 L/100 km
40.6 mpg US
48.7 mpg UK
Largest trunk
450 L
Best overall score
60/100
Best economy score
87/100
Best practicality score
51/100

Alpina Roadster S 3.3 i 24V

Quickest 0-100 km/h
5.3 s
Fastest top speed
265 km/h
165 mph
Most powerful
300 hp
224 kW
Lightest
1,320 kg
2,910 lb
Best power-to-weight
227 hp/t
169 kW/t
4.4 kg/hp
Best performance score
67/100

Specification comparison

Specification comparison
Model	AlpinaRoadster S3.3 i 24V	BMW6 Series Convertible (E64)Facelift 2007635d
Power	300hp224kW	286hp213kW
Torque	362Nm267lb-ft	580Nm428lb-ft
Curb weight	1,320kg2,910lb	1,860kg4,101lb
Gross weight	1,620kg3,571lb	2,260kg4,982lb
Top speed	265 km/h 165 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	66.7s99% target: 262 km/h / 163 mph Calculated	97.2s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	5.3s	6.6s
0-200 km/h	17.8s Calculated	24.8s Calculated
0-60 mph	5.0s Calculated	6.3s Calculated
Fuel consumption	-	7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city	15L/100 km15.7mpg US18.8mpg UK	9.6L/100 km24.5mpg US29.4mpg UK
Fuel consumption highway	7L/100 km33.6mpg US40.4mpg UK	5.8L/100 km40.6mpg US48.7mpg UK
Quarter mile	13.4s Calculated	14.6s Calculated
Power-to-weight	227hp/t169kW/t103hp/1000 lb Calculated	154hp/t115kW/t70hp/1000 lb Calculated
Torque-to-weight	274Nm/t183lb-ft/ton Calculated	312Nm/t209lb-ft/ton Calculated
Estimated range	-	972km604mi Calculated
Displacement	3,346cc204cu in	2,993cc183cu in
Length	4,090mm161in	4,820mm190in
Width	1,780mm70in	1,855mm73in
Height	1,300mm51in	1,374mm54in
Wheelbase	2,500mm98in	2,780mm109in
Front track	1,470mm58in	1,558mm61in
Rear track	1,520mm60in	1,596mm63in
Trunk volume	240L	450L
Max trunk volume	260L	-
Doors	2	2
Seats	2	4
Fuel tank	55L	70L
CO2 emissions	-	190g/km

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 6 Series Convertible (E64) Facelift 2007 635dPowerTorque

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
BMW6 Series Convertible (E64)Facelift 2007635d	4,400 rpm	1,750-2,250 rpm	4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	AlpinaRoadster S3.3 i 24V	BMW6 Series Convertible (E64)Facelift 2007635d
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.0 s	6.3 s
0-100 km/h 0-62 mph	5.3 s	6.6 s
0-200 km/h 0-124 mph	17.8 s	24.8 s
Top speed	265 km/h 165 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.3 s	2.4 s
330 ft 101 m	5.9 s	6.4 s
1/8 mile 201 m	8.8 s	9.6 s
1000 ft 305 m	11.3 s	12.3 s
1/4 mile 402 m	13.4 s	14.6 s
Trap speed 1/4 mile 402 m	176 km/h 109 mph	159 km/h 99 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
BMW6 Series Convertible (E64)Facelift 2007635d	286 hp 213 kW

Alpina Roadster S 3.3 i 24V has 14 hp more than BMW 6 Series Convertible (E64) Facelift 2007 635d.

The biggest power difference is between BMW 6 Series Convertible (E64) Facelift 2007 635d and Alpina Roadster S 3.3 i 24V: 14 hp (10 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
BMW6 Series Convertible (E64)Facelift 2007635d	580 Nm 428 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
BMW6 Series Convertible (E64)Facelift 2007635d	1,860 kg 4,101 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
BMW6 Series Convertible (E64)Facelift 2007635d	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
BMW6 Series Convertible (E64)Facelift 2007635d	6.6 s

The biggest 0-100 km/h difference is between Alpina Roadster S 3.3 i 24V and BMW 6 Series Convertible (E64) Facelift 2007 635d: 1.3 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
BMW6 Series Convertible (E64)Facelift 2007635d	154 hp/t 115 kW/t 6.5 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
BMW6 Series Convertible (E64)Facelift 2007635d	286 hp 213 kW	6.6 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

BMW6 Series Convertible (E64)Facelift 2007635d

Power	286 hp 213 kW
0-100 km/h	6.6 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	450 L 15.9 cu ft
Length	4,820 mm 189.8 in
Height	1,374 mm 54.1 in

Detailed score breakdown

Vehicle

AlpinaRoadster S3.3 i 24V

BMW6 Series Convertible (E64)Facelift 2007635d

Power

300 hp

224 kW

286 hp

213 kW

Torque

362 Nm

267 lb-ft

580 Nm

428 lb-ft

Acceleration

5.3 s

6.6 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

1,860 kg

4,101 lb

Fuel consumption

7.2 L/100 km

32.7 mpg US

39.2 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	450 L 15.9 cu ft
Length	4,820 mm 189.8 in
Height	1,374 mm 54.1 in

Range score

972 km

604 mi

CO2 score

190 g/km

Trunk score

240 L

8.5 cu ft

450 L

15.9 cu ft

Power-to-weight score

227 hp/t

169 kW/t

4.4 kg/hp

154 hp/t

115 kW/t

6.5 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 6 Series Convertible (E64) Facelift 2007 635d
Consumption	7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km	12.60 LC100 km
Cost / 100 mi	20.28 LC100 mi
Annual fuel used	1,080 L285 US gal238 UK gal
Annual fuel cost	1,890 LC/year