Daihatsu EF-CL, Engine
| Engine capacity | 659 cm³ |
| Maximum power (range), hp | 30 - 40 |
| Maximum torque, N*m (kg*m) at rpm. | 43 (4) / 3000 |
| Fuel used | Natural gas |
| Fuel consumption, l/100 km | 5.9 - 6.5 |
| Engine type | In-line, 3-cylinder |
| Maximum power, hp (kW) at rpm | 30 (22) / 6500 |
| Compression Ratio (Range) | 9.5 |
| Cylinder diameter (range), mm | 68 |
| Piston stroke (range), mm | 60.5 |
| Mechanism for changing cylinder volume | |
| Valve drive | SOHC |
| Start-stop system |