Compare BMW Z3 M Roadster vs BMW 3 Series E46 Convertible vs BMW M3 E93 Convertible
Variants
S50
S54
323Ci
323Ci AT
325Ci
325Ci AT
330Ci USA
330Ci AT USA
330Ci
330Ci AT
MT
DCT
Capacity
Cargo Capacity
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
8.4 L / 8.9 qt
Engine Oil Capacity
5.5 L / 5.8 qt
6.5 L / 6.9 qt
8.8 L / 9.3 qt
Fuel Capacity
51.0 L / 13.5 gal
63.0 L / 16.6 gal
63.0 L / 16.6 gal
Passengers
2
4
4
Chassis
Brakes | Front
Ventilated discs
Ventilated discs
Ventilated discs
Brakes | Rear
Ventilated discs
Disc
Ventilated discs
Power Steering
Hydraulic Steering
Hydraulic Steering
Electric Steering
Suspension | Front
MacPherson strut
MacPherson strut
MacPherson strut
Suspension | Rear
Multi-link
Multi-link
Multi-link
Turning Circle
10.5 m / 34.4 ft
11.7 m / 38.4 ft
Construction
Body Style
2-door Convertible
2-door Convertible
2-door Convertible
Dimensions
Size | Height
1392 mm / 54.8 in
Size | Length
4025 mm / 158.5 in
4488 mm / 176.7 in
4615 mm / 181.7 in
Size | Width
1740 mm / 68.5 in
1757 mm / 69.2 in
1804 mm / 71.0 in
Track Width | Front
1422.0 mm / 56.0 in
1471.0 mm / 57.9 in
1540.0 mm / 60.6 in
Track Width | Rear
1492.0 mm / 58.7 in
1483.0 mm / 58.4 in
1539.0 mm / 60.6 in
Wheel Size
17 in
9.5J x 18
Wheelbase
2725 mm / 107.3 in
2761 mm / 108.7 in
Performance
Coefficient Of Drag
0.32
Fuel Economy
16.6 L/100km / 14.2 MPG (urban) | 7.9 L/100km / 29.8 MPG (highway)
Top Speed
250.0 km/h / 155.3 mph
250.0 km/h / 155.3 mph
Towing Capacity
730 kg / 1609 lbs (w/o brakes) | 1600 kg / 3527 lbs (w/ brakes @ 8% gradient) | 1600 kg / 3527 lbs (w/ brakes @ 12% gradient)
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
S65B40
Engine | Bore
84.0 mm / 3.3 in
92.0 mm / 3.6 in
Engine | Compression Ratio
12.0:1
Engine | Displacement
4.0 L / 244.0 cu-in / 3999.0 cc
Engine | Power
420.0 hp / 313.2 kW @ 8300 rpm
Engine | Specific Output
105.0 hp/L / 1.7 hp/cu-in
Engine | Stroke
91.0 mm / 3.6 in
75.2 mm / 3.0 in
Engine | Torque
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 inline-6 DOHC engine with 4 values per cylinder
Naturally-aspirated multi-port injected petrol V8 engine with 4 values per cylinder
Transmission | Gears
5-speed
5-speed
Transmission | Type
Manual
Production
Availability
2008 ~ 2013
Reviews
Neofiliac score
66%
63%
77%
Pros
- Good engines
- Simple to work on
- No BS driving experience
- Came with a fixed hardtop
- Decent styling
- Reasonable reliability
- Convertible hard top
- Great styling with the top up or down
- Great S65 engine
- Good transmissions
Cons
- Stuck with MacPherson struts in the front
- Very little cargo space
- Heavier than the MX-5 and handles worse (but much more expensive)
- Poor reliability for the automatic transmission
- Quite basic in equipment
- Basic build quality
- Stuck with MacPherson struts in the front
- Much heavier than the Coupe
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