Smart 281, Engine
| Engine capacity | 998 cm³ |
| Maximum power (range), hp | 71 |
| Maximum torque, N*m (kg*m) at rpm. | 91 (9) / 2850 |
| Fuel used | Premium gasoline (AI-98) |
| Fuel consumption, l/100 km | 4.6 |
| Engine type | In-line, 3-cylinder |
| Maximum power, hp (kW) at rpm | 71 (52) / 6000 |
| Compression Ratio (Range) | 10.5 |
| Cylinder diameter (range), mm | 72.2 |
| Piston stroke (range), mm | 81.3 |
| Valve drive | DOHC |
| Start-stop system |