Compare Alpina Roadster S vs BMW Z3 M Roadster vs BMW 3 Series E93 LCI Convertible
Variants
S50
S54
318i
320d
320d AT
320i
320i AT
325d
325d AT
325i
325i AT
330d
330d AT
330i
330i AT
335i
335i AT
Capacity
Cargo Capacity
240 L / 8.5 cu-ft ~ 260 L / 9.2 cu-ft
165 L / 5.8 cu-ft
210 L / 7.4 cu-ft ~ 350 L / 12.4 cu-ft
Coolant Capacity
10.8 L / 11.4 qt
Engine Oil Capacity
5.5 L / 5.8 qt
Fuel Capacity
55.0 L / 14.5 gal
51.0 L / 13.5 gal
Passengers
2
2
4
Payload
300 kg / 661 lbs
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Ventilated discs
Ventilated discs
Power Steering
Hydraulic 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
11.0 m / 36.1 ft
Construction
Body Style
2-door Convertible
2-door Convertible
2-door Convertible
Dimensions
Ground Clearance
138 mm / 5.4 in
Size | Height
1300 mm / 51.2 in
1384 mm / 54.5 in
Size | Length
4090 mm / 161.0 in
4025 mm / 158.5 in
4612 mm / 181.6 in
Size | Width
1780 mm / 70.1 in
1740 mm / 68.5 in
1782 mm / 70.2 in
Track Width | Front
1470.0 mm / 57.9 in
1422.0 mm / 56.0 in
Track Width | Rear
1520.0 mm / 59.8 in
1492.0 mm / 58.7 in
Weight
1320.0 kg / 2910.1 lbs
Wheel Size
8.5J-9.5J X 19
17 in
Wheelbase
2500 mm / 98.4 in
2760 mm / 108.7 in
Performance
Acceleration | 0 - 100 km/h
5.3 sec
Acceleration | 0 - 60 mph
5.0 sec
Fuel Economy
15.0 L/100km / 15.7 MPG (urban) | 7.0 L/100km / 33.6 MPG (highway)
16.6 L/100km / 14.2 MPG (urban) | 7.9 L/100km / 29.8 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
Engine | Bore
87.0 mm / 3.4 in
Engine | Compression Ratio
10.2:1
Engine | Displacement
3.3 L / 204.2 cu-in / 3346.0 cc
Engine | Power
300.0 hp / 223.7 kW @ 6300 rpm
Engine | Specific Output
89.7 hp/L / 1.5 hp/cu-in
Engine | Stroke
93.8 mm / 3.7 in
91.0 mm / 3.6 in
Engine | Torque
362 Nm / 267.0 lb-ft @ 4800 rpm
Engine | Type
Naturally-aspirated multi-port injected petrol inline-6 DOHC engine with 4 values per cylinder
Naturally-aspirated multi-port injected petrol inline-6 DOHC engine with 4 values per cylinder
Transmission | Gears
5-speed
5-speed
Transmission | Type
Manual
Manual
Production
Availability
2003 ~ 2006
2010 ~ 2013
Reviews
Neofiliac score
87%
66%
65%
Pros
- Gorgeous styling
- Manual transmission
- Good performance
- Small turning circle
- Good engines
- Simple to work on
- No BS driving experience
- Supposedly more reliable, though still unreliable, engines
- Good 0.27 drag coefficient
Cons
- Low cargo capacity
- Stuck with MacPherson struts in the front
- Very little cargo space
- Heavier than the MX-5 and handles worse (but much more expensive)
- Complex and unreliable top
- Weight
- Engine reliability issues
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