McLaren Plans First In-House Engines in £500 Million UK Expansion

McLaren has long designed the engines in its modern road cars, but it has not manufactured them. That division of responsibility is now set to change: as part of a planned £500 million expansion in the United Kingdom, McLaren Automotive intends to build future powertrains in-house for the first time.

The plan, announced on September 16, represents more than an additional factory operation. It would move production control for one of McLaren’s defining systems from an engineering supplier into the automaker’s own manufacturing organization. The announced program is expected to start with two new engines and transmissions supporting McLaren’s hybrid strategy, although the company has not identified their configurations, production location or manufacturing start date.

That missing detail matters because McLaren is not beginning from a simple supplier relationship that can be switched off overnight. Since the MP4-12C arrived in 2011, McLaren’s powertrain engineers have designed the company’s V8 and V6 engines while Ricardo has manufactured them at Shoreham-by-Sea. Ricardo reported in May 2023 that it had built and delivered roughly 34,000 McLaren powertrains, with more than 100 engineers and technicians assigned to the work.

The two companies also extended their partnership in 2023 for a new generation of hybrid V8 engines, describing the agreement as running “into the next decade.” McLaren has not explained whether its internal operation will replace that program, take over after a defined production run or operate alongside Ricardo during a phased transition. Until those boundaries are disclosed, the announcement should be understood as a manufacturing commitment rather than a completed transfer.

Why engine manufacturing changes McLaren’s operating model

Design authority and manufacturing authority are related, but they are not the same. Designing an engine establishes its architecture and performance targets. Producing it repeatedly requires industrial processes, supplier coordination, assembly controls, testing, traceability and consistent quality across every unit.

Bringing those responsibilities in-house could give McLaren tighter control over production timing, cost and quality as its range expands. It may also shorten the organizational distance between powertrain development and the factory processes needed to build increasingly integrated hybrid systems. Those are potential benefits of vertical integration, however, not results McLaren has yet demonstrated.

The cost is that McLaren must establish or absorb manufacturing capabilities previously provided by a specialist with about 15 years of program experience. Facilities and equipment are only part of that transition. Process validation, workforce training, supplier management and production ramp-up will determine whether internal manufacturing produces the intended control without disrupting output. McLaren has not published the allocation of the £500 million among engine production, vehicle assembly and its other planned expansions.

The engine move follows an earlier attempt to internalize another central part of the company’s vehicle architecture. McLaren opened its £50 million Composites Technology Centre in Rotherham in 2018, its first production site outside Woking. That facility manufactures the carbon-fiber tubs at the structural core of McLaren vehicles and is now due to expand as part of the new investment.

The broader program also includes a new UK vehicle-production facility, increased manufacturing capacity and a performance SUV. McLaren has not announced the new plant’s location. The company says the investment will create 1,000 jobs by 2032, while ministers expect it to support as many as 3,000 additional positions across the wider sector. For perspective, UK automotive manufacturing employs approximately 188,000 people, making McLaren’s commitment meaningful for specialized work but modest beside the industry’s total workforce.

The expansion follows CYVN Holdings’ April 2025 acquisition of McLaren Automotive and its combination with Forseven, with Forseven executive Nick Collins becoming chief executive of the combined group. A wider product portfolio creates a practical reason to seek more production control, especially where engines and hybrid systems must be coordinated with vehicle design, assembly capacity and launch schedules.

Nothing in the announcement establishes a change to parts or service support for existing McLaren cars. The immediate question is instead how the company will reconcile its first internal engine line with a Ricardo agreement intended to continue into the next decade. McLaren’s manufacturing shift will become measurable only when it identifies the engines, factory, production timetable and transition plan behind the £500 million commitment.

By Thomas Caldwell — AMI’s senior editor for mechanical and mobility engineering, covering vehicle electronics, systems integration, electrification, chassis systems, propulsion, and safety policy.