The McLaren M860 is a 4,000 cc, twin‑turbocharged V8 petrol hybrid powertrain co‑developed with Ricardo, introduced in 2023 for the Artura supercar. It features a flat‑plane crank, dry sump lubrication, and an axial flux electric motor integrated into the transmission, delivering a combined output exceeding 500 kW (680 PS). The hybrid system enables torque fill at low rpm, enhancing throttle response without sacrificing peak power.
Fitted exclusively to the Artura platform, the M860 was engineered for explosive acceleration and track-focused agility while meeting stringent global emissions regulations. Emissions compliance is achieved through gasoline particulate filters (GPF) and sophisticated engine management, allowing it to meet Euro 6d and ULEV125 standards across all markets.
One documented area of focus is the high‑voltage battery cooling system under sustained track use, addressed in McLaren Service Bulletin ART‑HV‑01. Thermal management strategies were refined to maintain optimal battery performance during repeated high‑load cycles. Software updates to the hybrid control unit have been issued to optimize energy deployment.
All production years (2023–Present) meet Euro 6d and ULEV125 standards globally (VCA UK Type Approval #VCA/MCL/860).
The McLaren M860 is a 4,000 cc twin-turbo V8 hybrid engineered for high-performance supercars (2023-Present). It combines a flat-plane crank V8 with an axial flux electric motor to deliver instant torque and extreme top-end power. Designed to meet Euro 6d and ULEV125 standards, it represents a balance of electrified performance and regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,000 cc | |
| Fuel type | Petrol (98 RON min.) | |
| Configuration | 90° V8, DOHC, 32-valve, flat-plane crank | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 84.0 mm × 90.0 mm | |
| Power output | 500 kW (680 PS) combined system output | |
| Torque | 720 Nm @ 2,250–8,500 rpm (ICE only) | |
| Fuel system | Gasoline direct injection (GDI), 350 bar | |
| Emissions standard | Euro 6d, ULEV125 | |
| Compression ratio | 8.5:1 | |
| Cooling system | Dual-circuit water-cooled (engine & hybrid) | |
| Turbocharger | Twin mono-scroll turbochargers (Garrett) | |
| Timing system | Chain-driven, dual overhead camshafts | |
| Oil type | McLaren C30 Spec (0W-40) | |
| Dry weight | 160 kg (ICE only) |
The hybrid system provides immediate off-throttle torque but requires the high-voltage battery to be maintained above 20% charge for optimal performance. McLaren C30 (0W-40) oil is mandatory due to its specific formulation for the flat-plane crank and turbo bearings. The engine demands 98 RON minimum fuel; lower octane can trigger protective power reduction. High-load track use necessitates cooldown cycles for the hybrid battery as per SB ART-HV-01. GPF systems are sensitive to prolonged idling or very short trips.
Oil Specs: Requires McLaren C30 specification (0W-40) only (McLaren TP-M860-OIL). ACEA or API ratings are insufficient.
Emissions: Euro 6d and ULEV125 certification applies globally (VCA Type Approval #VCA/MCL/860). No market-specific variations.
Power Ratings: Measured under ISO 1585 standards. Combined system output includes 70 kW from axial flux E-motor (McLaren ENG-HYB-01).
McLaren Technical Information System: Docs TP-M860-01, ENG-V8-2022, SIB ART-HV-01
VCA Type Approval Database (VCA/MCL/860)
ISO International: 1585 Engine Power Test Code
The McLaren M860 is used exclusively in McLaren's Artura platform with longitudinal mid-engine mounting and no external licensing. This engine features bespoke adaptations-integrated E-motor housing and unique exhaust manifolds-and no facelift revisions have occurred to date, ensuring full parts interchangeability within the model run. All adaptations are documented in OEM technical bulletins.
Locate the engine code 'M860' laser-etched on the front face of the left cylinder bank, adjacent to the timing cover (McLaren TIS ART-ID-01). The 8th VIN digit is 'M' for this engine family. All Artura models use identical engine hardware; differentiation is via ECU mapping and suspension tuning. Critical identification: Look for the bright orange high-voltage cable running from the transmission tunnel to the rear bulkhead. Service parts are universal across all Artura variants; software calibration is variant-specific and must be performed by authorized dealers using McLaren Diagnostics (MDT).
The M860's primary operational consideration is thermal management of its hybrid components under track conditions. Internal McLaren telemetry from 2023 indicates elevated coolant temperatures in the E-motor inverter during consecutive hot laps, while early customer reports prompted refinement of battery cooling logic. Sustained high-load operation makes adherence to cooldown procedures critical.
Analysis derived from McLaren technical bulletins (2023-2024) and internal engineering reports (2023-2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MACLAREN M860.
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