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Compare Alpina Roadster S vs BMW M3 E93 Convertible vs Alpina B6 E64

Variants
MT
DCT
B6
B6 S

Capacity

Cargo Capacity
240 L / 8.5 cu-ft ~ 260 L / 9.2 cu-ft
210 L / 7.4 cu-ft ~ 350 L / 12.4 cu-ft
450 L / 15.9 cu-ft
Engine Oil Capacity
8.8 L / 9.3 qt
Fuel Capacity
55.0 L / 14.5 gal
63.0 L / 16.6 gal
70.0 L / 18.5 gal
Passengers
2
4
4
Payload
300 kg / 661 lbs
260 kg / 573 lbs

Chassis

Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Power Steering
Electric Steering
Suspension | Front
MacPherson strut
MacPherson strut
MacPherson strut
Suspension | Rear
Double-wishbone
Multi-link
Multi-link
Tire Size
235/35 R19, 265/30 R19
Turning Circle
9.8 m / 32.1 ft
11.7 m / 38.4 ft

Construction

Body Style
2-door Convertible
2-door Convertible
2-door Convertible

Dimensions

Size | Height
1300 mm / 51.2 in
1392 mm / 54.8 in
1371 mm / 54.0 in
Size | Length
4090 mm / 161.0 in
4615 mm / 181.7 in
4820 mm / 189.8 in
Size | Width
1780 mm / 70.1 in
1804 mm / 71.0 in
1855 mm / 73.0 in
Track Width | Front
1470.0 mm / 57.9 in
1540.0 mm / 60.6 in
1558.0 mm / 61.3 in
Track Width | Rear
1520.0 mm / 59.8 in
1539.0 mm / 60.6 in
1598.0 mm / 62.9 in
Weight
1320.0 kg / 2910.1 lbs
1930.0 kg / 4254.9 lbs
Wheel Size
8.5J-9.5J X 19
9.5J x 18
Wheelbase
2500 mm / 98.4 in
2761 mm / 108.7 in
2780 mm / 109.4 in

Performance

Acceleration | 0 - 100 km/h
5.3 sec
Acceleration | 0 - 60 mph
5.0 sec
Coefficient Of Drag
0.32
Fuel Economy
15.0 L/100km / 15.7 MPG (urban) | 7.0 L/100km / 33.6 MPG (highway)
18.9 L/100km / 12.4 MPG (combined) | 22.6 L/100km / 10.4 MPG (urban) | 9.3 L/100km / 25.3 MPG (highway)
Top Speed
265.0 km/h / 164.7 mph
250.0 km/h / 155.3 mph

Powertrain

Drivetrain Layout
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Front-engine (longitudinal), Rear-wheel drive
Emission Standard
Euro 5
Euro 4
Engine
S65B40
Engine | Bore
87.0 mm / 3.4 in
92.0 mm / 3.6 in
92.0 mm / 3.6 in
Engine | Compression Ratio
10.2:1
12.0:1
9.0:1
Engine | Displacement
3.3 L / 204.2 cu-in / 3346.0 cc
4.0 L / 244.0 cu-in / 3999.0 cc
4.4 L / 268.4 cu-in / 4398.0 cc
Engine | Power
300.0 hp / 223.7 kW @ 6300 rpm
420.0 hp / 313.2 kW @ 8300 rpm
Engine | Specific Output
89.7 hp/L / 1.5 hp/cu-in
105.0 hp/L / 1.7 hp/cu-in
Engine | Stroke
93.8 mm / 3.7 in
75.2 mm / 3.0 in
82.7 mm / 3.3 in
Engine | Torque
362 Nm / 267.0 lb-ft @ 4800 rpm
400 Nm / 295.0 lb-ft @ 3900 rpm
Engine | Type
Naturally-aspirated multi-port injected petrol inline-6 DOHC engine with 4 values per cylinder
Naturally-aspirated multi-port injected petrol V8 engine with 4 values per cylinder
Supercharged multi-port injected petrol V8 DOHC engine with 4 values per cylinder
Transmission | Gears
5-speed
6-speed
Transmission | Type
Manual
Automatic

Production

Availability
2003 ~ 2006
2008 ~ 2013

Reviews

Neofiliac score
87%
77%
87%
Pros
  • Gorgeous styling
  • Manual transmission
  • Good performance
  • Small turning circle
  • Convertible hard top
  • Great styling with the top up or down
  • Great S65 engine
  • Good transmissions
  • Superb elegance and styling
  • Good performance
  • Decent handling
Cons
  • Low cargo capacity
  • Stuck with MacPherson struts in the front
  • Much heavier than the Coupe
  • Very high fuel consumption
  • Stuck with MacPherson struts in the front

Price

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