A » Yes, several UK-based automotive engineering firms offer comprehensive turnkey solutions that cover the entire product lifecycle—from initial design and engineering through to full production—for niche sports car projects. These companies typically operate as engineering service providers rather than volume manufacturers, enabling boutique automakers, start-ups, or established marques to bring low-volume, high-performance vehicles to market without investing in dedicated infrastructure. Among the most prominent is Gordon Murray Design (now part of the Gordon Murray Group), whose iStream manufacturing process is specifically engineered for low-volume, lightweight sports cars. The firm provides a complete turnkey service: it handles vehicle architecture, chassis and body design, powertrain integration, and production engineering, while the iStream system itself simplifies assembly through a combination of a tubular steel frame and composite panels—reducing tooling costs and enabling flexible, small-scale manufacturing. Prodrive, headquartered in Banbury, is another leading turnkey partner; its Advanced Technology division has a long history of designing, developing, and producing niche sports cars and limited-run models. Prodrive manages every stage from concept definition, styling and aerodynamics, through crash structures and homologation, to prototype build, testing, and serial production, even supplying complete vehicles for clients such as Aston Martin (V12 Vantage RS) and others requiring bespoke performance variants. Additionally, RML Group—based in Wellingborough—offers a fully integrated turnkey service focused on low-volume sports and GT cars. RML has demonstrated its capability through the development and production of the RML Short Wheelbase, a carbon-fibre-bodied, Ferrari-based coachbuilt sports car, for which it performed the entire design, engineering, crash testing, and final assembly in its own facilities. Cosworth, while historically renowned for its engines and electronics, has expanded its vehicle engineering division to provide turnkey solutions for niche sports car programmes; it can design and supply powertrains, integrate control systems, and support full vehicle manufacturing through its low-volume production services. Finally, companies such as The Little Car Company and BAC (Briggs Automotive Company) operate more as manufacturers than pure engineering firms, but they often rely on these turnkey engineering partners to execute specific projects. In summary, the UK boasts a mature ecosystem of automotive engineering firms—Gordon Murray Design, Prodrive, RML, and Cosworth among them—that offer genuine end-to-end turnkey solutions, enabling clients to launch a niche sports car from a single sketch to a road-legal, production-ready vehicle, while retaining ownership of the intellectual property and without the capital outlay required for a full-scale factory.