The McLaren M860E is a 4,000 cc, twin-turbocharged V8 petrol hybrid powertrain developed in partnership with Ricardo, debuting in 2023. It integrates an electric motor within the transmission for instantaneous torque fill and combined system output. Key technologies include a flat-plane crankshaft, dry-sump lubrication, and a high-voltage hybrid system enabling brief electric-only operation for enhanced drivability.
Fitted exclusively to the McLaren Artura supercar, the M860E was engineered for explosive acceleration and track-focused agility while meeting stringent global emissions regulations. Its character prioritizes high-revving power delivery and razor-sharp throttle response. Emissions compliance is achieved through gasoline particulate filters (GPF) and sophisticated engine management, meeting Euro 6d standards from launch.
One documented engineering focus area is thermal management of the high-voltage hybrid battery and power electronics under sustained track use, addressed through dedicated cooling circuits and software protocols as outlined in McLaren Service Bulletin SB-M860E-01. Continuous software updates refine energy deployment strategies.
Production from 2023 meets Euro 6d-TEMP-EVAP-ISC and ULEV125 standards globally (VCA UK Type Approval #VCA/MCL/860E).
The McLaren M860E is a 4,000 cc twin-turbo V8 hybrid engineered for mid-engine supercars (2023-Present). It combines a flat-plane crank V8 with an axial flux electric motor to deliver brutal acceleration and precise low-speed control. Designed to meet Euro 6d and ULEV125 standards, it balances extreme performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,998 cc | |
| Fuel type | Petrol (95 RON min.) | |
| Configuration | V8, 90°, DOHC, 32-valve, flat-plane crank | |
| Aspiration | Twin-turbocharged (twin-scroll) | |
| Bore × stroke | 84.0 mm × 90.0 mm | |
| Power output | 680 PS (ICE) + 95 PS (Electric) = 775 PS Combined | |
| Torque | 800 Nm (ICE) @ 2,250–8,500 rpm + 225 Nm (Electric) | |
| Fuel system | Direct injection (200 bar), port injection | |
| Emissions standard | Euro 6d-TEMP-EVAP-ISC, ULEV125 | |
| Compression ratio | 8.5:1 | |
| Cooling system | Liquid-cooled (separate circuits for ICE, hybrid, battery) | |
| Turbocharger | Twin BorgWarner EFR 7163 (twin-scroll) | |
| Timing system | Chain-driven, dual overhead camshafts | |
| Oil type | McLaren C30 Spec (SAE 0W-40) | |
| Dry weight | 160 kg (ICE only) |
The hybrid system provides instant torque off-idle, transforming low-speed maneuverability, but demands adherence to strict 10,000 km or 12-month service intervals using McLaren C30 oil to protect turbo bearings and the complex valvetrain. The 95 RON minimum fuel requirement is critical for knock prevention under high boost. Battery state-of-health is monitored continuously; prolonged storage requires connection to a maintenance charger per SB-M860E-01. Thermal soak after track driving should be managed via cooldown cycles.
Oil Specs: Requires McLaren C30 specification (0W-40) only (McLaren TP-M860E-001). Not interchangeable with generic ACEA C3 oils.
Emissions: Certified to Euro 6d-TEMP-EVAP-ISC and ULEV125 for all markets (VCA Type Approval #VCA/MCL/860E). Real Driving Emissions (RDE) compliant.
Power Ratings: Measured under ISO 1585 / SAE J1349 standards at wheels with standard exhaust (McLaren TP-M860E-001).
McLaren Technical Publications: TP-M860E-001, SB-M860E-01
VCA Type Approval Database (VCA/MCL/860E)
ISO 1585: Road vehicles — Engine test code — Net power
The McLaren M860E is used exclusively in McLaren's Artura platform with longitudinal, rear-mid mounting. This engine features bespoke integration with Ricardo's hybrid module and McLaren's carbon fibre monocoque, creating absolute interchange limits. All adaptations are documented in OEM technical bulletins.
The M860E engine code is laser-etched on a machined pad atop the intake plenum, visible upon opening the rear decklid (McLaren TIS A860-001). The VIN's 4th-6th characters will be 'AAM' for Artura models. Visually, the engine is identifiable by its compact, low-slung design, prominent twin-turbochargers flanking the block, and the bright orange high-voltage cables running to the hybrid module integrated into the gearbox bellhousing. No parts interchange exists with previous McLaren V8s (M838T/M840T) due to fundamental architecture changes.
The M860E's primary focus area is long-term durability of the high-voltage hybrid system under extreme conditions, though early fleet data shows strong reliability. McLaren internal telemetry indicates robust mechanical performance, while owner reports highlight occasional infotainment glitches unrelated to the powertrain. Adherence to prescribed maintenance and avoiding deep discharge of the hybrid battery are paramount for longevity.
Analysis derived from McLaren technical bulletins (2023-2024) and aggregated, anonymized vehicle telematics data (2023-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MACLAREN M860-E.
Comprehensive technical documentation and regulatory references
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