Verdict
The X5 has a 57% bigger boot, while the X5 is 17% more powerful. Weigh that against the equipment each side gives you in the table below.
What the X5 has over the Z4
Child Safety LockBlind Spot Info SystemISOFIXAutonomous Braking SystemLane-keeping AssistCollision WarningRear SeatsSunroofRear Air-conSun ShadeElectric Steering AdjustmentHead-up Display
What the Z4 has over the X5
Tiptronic
Based on the published spec sheets of the selected variants — a blank field on one side can also mean unlisted data.
The X5's wheelbase is 505 mm longer, which usually translates to more rear legroom. The X5 is 140 mm wider — more shoulder room, but a tighter fit in parking bays. Boot space favours the X5: 650 litres against 280.
X5 4,935 × 2,004 × 1,765 mm · wheelbase 2,975 mmZ4 4,324 × 1,864 × 1,304 mm · wheelbase 2,470 mm
Representative body-type outlines, drawn to scale from each car's length and height.
| Price & overview | ||
|---|---|---|
| Price | RM470,800✓ | RM475,230 |
| Body type | SUV | Convertible |
| Segment | Executive | Sports Car |
| Assembly | CKD | CBU |
| Ownership | ||
| Road tax / year | RM1,637 | RM379✓ |
| Monthly instalment (est.) | RM4,805/mo✓ | RM4,850/mo |
| Insurance / year (est.) | RM12,587✓ | RM12,669 |
| Fuel / year (est.) | — | RM2,587 |
| Energy cost / 100 km (est.) | — | RM12.94 |
| 5-year running costs (est.) | — | RM78,175 |
| Powertrain | ||
| Engine Tech | 24-valve DOHC, Turbochaged with Direct Injection and Variable Valve Timing and Lift | 16-valve DOHC, direct fuel injection, twin-scroll turbo with variable valve timing |
| Capacity | 2,998 cc | 1,998 cc |
| Horsepower | 308 hp at 5,000 rpm✓ | 255 hp at 5,000 rpm |
| Torque | 540 Nm at 1,750 rpm✓ | 400 Nm at 1,550 rpm |
| Cylinder Arrangement | Inline 6 | Inline 4 |
| Fuel | Petrol Hybrid/REV | Petrol |
| Bore × Stroke | 82 mm × 94.6 mm | 82 mm × 94.6 mm |
| Compression Ratio | 11 | 11.1 |
| Number of Motors | 1 | — |
| Drivetrain | ||
| Transmission | Conventional Automatic | Conventional Automatic |
| Transmission Name | Eight-speed Steptronic | 8-Speed Steptronic Sport Transmission |
| Gears | 8 | 8 |
| Transmission Manufacturer | ZF | ZF |
| Driveline | All Wheel Drive | Rear Wheel Drive |
| Performance & Efficiency | ||
| 0-100 km/h | 5.4 seconds | 5.4 seconds |
| Rated Economy | — | 6.5 L/100 km |
| Top Speed | 250 km/h | 250 km/h |
| Co2 | — | 149 g/km |
| Dimensions | ||
| Length | 4,935 mm | 4,324 mm |
| Width | 2,004 mm | 1,864 mm |
| Height | 1,765 mm | 1,304 mm |
| Wheelbase | 2,975 mm | 2,470 mm |
| Weight | 2,240 kg | 1,491 kg |
| Fuel Tank | 83 litres | 52 litres |
| Doors | 5 | 2 |
| Seats | 5 | 2 |
| Boot Space | 650 litres✓ | 280 litres |
| Front Tyre | 275/40R21 | 225/45R18 |
| Rear Tyre | 315/35R21 | 255/40R18 |
| Spare Tyre | N/A, Tyre Repair Kit | — |
| Factory Tyres | Continental PremiumContact 6 SSR Run-flats | Michelin Pilot Super Sport |
| Wiper Blade (Driver) | 26 inch | — |
| Wiper Blade (Passenger) | 20 inch | — |
| Wiper Blade (Rear) | 14 inch | — |
| Chassis | ||
| Assembly | Malaysia (CKD) | Austria (CBU) |
| Front Suspension | Double Wishbones with Air Suspension | MacPherson Strut |
| Rear Suspension | Multi-link with Air Suspension | Multi-link |
| Front Wheels | 21" Style 915M Light Alloy Wheels | 18" Double Spoke Style 798M Alloys |
| Rear Wheels | 21" Style 915M Light Alloy Wheels | 18" Double Spoke Style 798M Alloys |
| Steering | Rack and Pinion (Electric Power Steering) | Rack and Pinion (Electric Power Steering) |
| Chassis Notes | Air Suspension with Adaptive Dampers | M Sport Suspension |
| Safety | ||
| Airbags | 8 (Driver and Passenger, Driver Knee, Front Side, Front and Rear Curtain) | 4 (Driver and Passenger, Front Side) |
| ABS/EBD | ✓ | ✓ |
| Stability Control | ✓ | ✓ |
| Alarm | ✓ | ✓ |
| Immobilizer | ✓ | ✓ |
| Airbag Disable Function | ✓ | ✓ |
| Child Safety Lock | Manual for Rear Doors | — |
| Seat Belts | 5 Three-point | 2 Three-point |
| Blind Spot Info System | ✓ | — |
| ISOFIX | Available for 2 Outer Rear Seats | — |
| Autonomous Braking System | Yes | — |
| Lane-keeping Assist | Steering Correction | No |
| Collision Warning | ✓ | — |
| Seatbelt Reminder | All Seats | For All Seats |
| Safety Notes | — | Flat Tyre Indicator |
| Lighting | ||
| Headlamps | Adaptive LED headlights with Auto High Beam | LED Projectors |
| Taillamps | LED Combination | LED Combination |
| LED Daytime Running Lights | ✓ | ✓ |
| Rear Foglamps | ✓ | ✓ |
| Wing Mirror Turn Indicators | ✓ | ✓ |
| Cabin | ||
| Front Seats | Driver and Passenger Powered Seats | Power Adjustable Front Seats with Memory Function |
| Rear Seats | 40:20:40 Split-folding | — |
| Front Air-con | Dual-zone Automatic Climate Control | Dual-zone Automatic Climate Control System |
| Rear Air-con | Dual-zone Automatic Climate Control | — |
| Sunroof | Panoramic Sliding Sunroof | — |
| Power Sockets | 1 Front, 1 USB-A, 1 USB-C Front, 4 USB-C Rear | 1 Front |
| Interior Lighting | Map Lights & Ambient Lighting | Map Lights and Ambient Lights |
| Cup Holders | 2 Front, 2 Rear | 2 Front |
| Sun Shade | Powered Sunroof Shade, Manual Rear Window Shades | — |
| Audio | 14.9" Touchscreen BMW Live Cockpit Professional with Voice Control, Wireless Apple CarPlay, Wireless Android Auto and 17-speaker Harman Kardon Sound System (525W) | 10.25" BMW Navigation system Professional, iDrive Touch controller, 12-speaker Harman Kardon Surround Sound System |
| Convenience | ||
| Power Windows | Four Windows, Auto Up & Down with Anti-pinch | Two Windows, Auto Up and Down with Anti-Pinch |
| Engine Start | Keyless Push Button | Keyless Push Button |
| Locks | Keyless Operation | Keyless Operation |
| Auto Start/Stop | ✓ | ✓ |
| Auto Headlamps | ✓ | ✓ |
| Auto Wipers | ✓ | ✓ |
| Cruise Control | Adaptive Cruise Control | Passive Cruise Control |
| Tiptronic | — | ✓ |
| Paddle Shift | ✓ | ✓ |
| Steering Audio Control | ✓ | ✓ |
| Steering Tilt | ✓ | ✓ |
| Steering Telescopic | ✓ | ✓ |
| Electric Steering Adjustment | ✓ | — |
| Boot Operation | Contactless Opening, Powered Boot | Remote Control Activation |
| Parking Sensor Front | 6 Sensors | 4 Sensors |
| Parking Sensor Rear | 6 Sensors | 4 Sensors |
| Reverse Camera | Yes, 360-degree View Monitor | Yes |
| Auto Parking | Yes | Yes |
| Folding Wing Mirrors | ✓ | ✓ |
| Bluetooth | ✓ | ✓ |
| Navigation | ✓ | ✓ |
| Head-up Display | ✓ | — |
| Hill Start Assist | ✓ | ✓ |
| Instrument Cluster | Full LCD Monitor | Full LCD Monitor |
| Parking Brake | Electronic | Electronic |
| Convenience Notes | — | BMW ConnectedDrive, Concierge Service |
| Warranty | ||
| Warranty Mileage Manufacturer | Unlimited | Unlimited |
| Warranty Mileage Extended | Unlimited | — |
| Warranty Manufacturer | 2 years | 2 years |
| Warranty Extended | 3 years | — |
Specs shown for the selected variant of each car. ✓ marks the better figure where lower/higher is objectively better. Road tax: West Malaysia, private registration. Running-cost estimates assume 20,000 km/year. Fuel at RM1.99/litre (RON95, subsidised). Insurance: comprehensive motor tariff, no NCD. Instalment: 10% down, 2.5% flat rate, 9 years. Prices checked November 2026.
Used X5 & Z4 for sale
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BMW X5
X5 vs Z4 FAQ
Which one is locally assembled?
The X5 is assembled in Malaysia (CKD), while the Z4 is fully imported (CBU) from Austria. Local assembly generally helps pricing and spare-parts supply, and CKD programmes usually signal a longer-term commitment to the model here.