McLaren M838T, Engine
| Engine capacity | 3,799 cm³ |
| Maximum power (range), hp | 650 - 800 |
| Maximum torque, N*m (kg*m) at rpm. | 720 (73) / 4000 |
| Fuel used | Gasoline AI-95 |
| Fuel consumption, l/100 km | 8.3 |
| Engine type | V-shaped, 8-cylinder |
| Additional engine information | direct fuel injection |
| Maximum power, hp (kW) at rpm | 650 (478) / 7500 |
| Compression Ratio (Range) | 8.1 |
| Cylinder diameter (range), mm | 93 |
| Piston stroke (range), mm | 69.9 |
| Supercharger | Twin turbocharging |
| CO₂ emissions (range), g/km | 193 |
| Valve drive | DOHC |