The McLaren M860 P1 is a 3,799 cc, 90° V8 twin — turbocharged petrol engine, integrated with an electric hybrid system, produced exclusively between 2013 and 2015. Developed in partnership with Ricardo, it features dual overhead camshafts (DOHC), dry — sump lubrication, and a flat — plane crankshaft. This powertrain architecture delivers a combined system output of 727 kW (986 PS), with the internal combustion engine alone producing 542 kW (737 PS) and 720 Nm of torque, en…
All production years (2013–2015) meet Euro 6 standards for the markets in which the vehicles were sold (UK VCA Type Approval #VCA/MCL/P1).
The McLaren M860 P1 is a 3,799 cc 90° V8 twin-turbocharged petrol engine, paired with an electric motor, engineered for the ultimate hypercar experience (2013-2015). It combines a flat-plane crankshaft with dry-sump lubrication and a hybrid electric system to deliver unparalleled performance. Designed to meet Euro 6 standards, it represents the pinnacle of road-legal, track-capable powertrain technology.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,799 cc | |
Fuel type | Petrol | |
Configuration | 90° V8, DOHC, 32-valve | |
Aspiration | Twin-turbocharged | |
Bore × stroke | 93.0 mm × 69.9 mm | |
Power output (ICE) | 542 kW (737 PS) | |
Torque (ICE) | 720 Nm @ 4,000 rpm | |
Fuel system | Gasoline direct injection (GDI) | |
Emissions standard | Euro 6 | |
Compression ratio | 9.0:1 | |
Cooling system | Liquid-cooled with auxiliary hybrid system coolers | |
Turbocharger | Twin mono-scroll turbochargers (Garrett) | |
Timing system | Chain-driven | |
Oil type | McLaren C30 Spec (SAE 0W-40) | |
Dry weight (ICE) | 176 kg |
The McLaren M860 P1 was used exclusively in the McLaren P1 hypercar with longitudinal, rear-mid mounting and is not licensed to other manufacturers. This powertrain is a bespoke, integrated system where the ICE and electric motor are calibrated as a single unit. Software and hardware are not interchangeable with other McLaren models, as documented in OEM technical bulletins.
The M860 P1's primary documented focus is managing heat in the hybrid power electronics and electric motor during extreme performance driving. McLaren service data indicates the TSB-M860P1-01 cooling system update was effective, while owner reports highlight the criticality of specialized high-voltage system maintenance. Sustained track use without adequate cooling can stress components, making adherence to McLaren's specific service protocols essential.
Analysis derived from McLaren technical bulletins (2013-2015) and aggregated owner service reports (2014-2024). Repair procedures should follow manufacturer guidelines and require certified high-voltage technicians.
The most common questions about engine codes, what they mean, how to find them and how this database works
As a limited-production hypercar, the M860 P1 is a complex, high-strung machine. Long-term reliability is excellent when maintained exclusively by McLaren specialists following the factory schedule. Key factors are managing hybrid system health, using correct fluids, and avoiding extreme conditions without proper cooling. Its value and complexity necessitate expert care.
The most documented issues relate to the hybrid system: potential power electronics cooling under extreme load (addressed by TSB), high-voltage battery degradation over time, and the common GDI issue of intake valve carbon buildup. Electrical connector corrosion can also occur. These are manageable with proactive, specialized maintenance.
The M860 P1 powertrain is exclusive to the McLaren P1 hypercar, produced from 2013 to 2015. It is not used in any other McLaren model, past or present. It is a bespoke system developed specifically for the P1.
Tuning the M860 P1 is exceptionally rare and complex due to its integrated hybrid system and bespoke calibration. While theoretically possible, any modification risks destabilizing the delicate balance between ICE and electric power, potentially causing damage or voiding any remaining warranty. It is generally not recommended or pursued by owners.
Fuel economy is not a priority. In combined driving, expect figures around 18-22 L/100km (15-13 mpg UK). In electric-only mode, it can achieve zero emissions for very short distances (up to ~11 km). Under hard driving or track use, consumption will exceed 30 L/100km (10 mpg UK).
Yes. Like virtually all modern high-performance engines, the M860 is an interference design. A timing chain failure would likely result in catastrophic valve and piston damage. The chain system is robust, but given the engine's value, any unusual noises should be investigated immediately by a McLaren specialist.
McLaren mandates its proprietary C30 specification, a 0W-40 synthetic oil, for the internal combustion engine. Using any other oil can void warranty and cause damage. This oil is specifically formulated for the engine's high temperatures, pressures, and bearing clearances. The hybrid system has its own separate coolant and lubrication requirements.
Comprehensive technical documentation and regulatory references
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