Jem Marsh, co-founder of Marcos, in the early days of motorsport
Co-Founder · 1959

Jem Marsh

Racing driver, engineer and tireless promoter, Jem Marsh co-founded Marcos in North Wales in 1959. Across six decades he remained the driving force behind the marque, championing its motorsport ambitions and racing many of the cars he built.

Frank Costin, co-founder of Marcos and aeronautical engineer, photographed beside one of his early aerodynamic body shells
Co-Founder · 1959

Frank Costin

Aeronautical engineer behind the de Havilland Mosquito and designer of the first Formula One championship-winning monocoque chassis, Frank Costin brought aircraft thinking to car design. His brother Mike Costin co-founded Cosworth, leaving the Costin name written across decades of British motorsport.

Every Marcos, In Order

  1. 1959

    The Flying Splinter

    The first Marcos. Frank Costin, fresh from his work on the de Havilland Mosquito, applied aircraft aerodynamics and laminated plywood construction to a sports car for the first time. Unconventional, lightweight and shockingly fast, it set the template for every Marcos that would follow.

    Costin Design Plywood Monocoque
    The 1959 Marcos Flying Splinter, the marque’s first car, designed by Frank Costin
  2. 1964

    Marcos GT (1800 GT)

    Drawn by Dennis and Peter Adams, the 1800 GT became the marque's first true icon: a low-slung British coupé on a laminated plywood chassis with a featherlight fibreglass body and Volvo straight-four power. The shape would define Marcos for the next 40 years.

    Adams Brothers Fibreglass Body
    The 1964 Marcos GT (1800 GT), designed by Dennis and Peter Adams
  3. 1965

    Mini Marcos

    A fibreglass monocoque sports car powered by Mini A-series running gear, sold as a kit. Engineered for road and track, the Mini Marcos punched far above its weight, taking a class finish at the 1966 Le Mans 24 Hours, the only British car to do so that year.

    Le Mans Class Finish Mini A-Series
    The Mini Marcos, a fibreglass monocoque sports car that took a class finish at the 1966 Le Mans 24 Hours
  4. 1968

    Mantis XP

    A one-off experimental endurance racer powered by a BRM V8. The Mantis XP was Marcos at its most ambitious: a Goodwood crowd-stopper whose silhouette would echo through everything the company built afterwards.

    BRM V8 Endurance Prototype
    The Marcos Mantis XP, a one-off BRM V8-powered endurance racer
  5. 1970

    Mantis M70

    A bold 2+2 grand tourer with Triumph straight-six power. Only 32 were built before the original Marcos Engineering folded, making the M70 one of the rarest production Marcos models ever made.

    Triumph I6 32 Built
    The Marcos Mantis M70 grand tourer, of which only 32 were built
  6. 1983

    Mantula

    A major modernisation of the GT formula. Marcos kept the signature fibreglass body but introduced an upgraded steel chassis, fresh suspension geometry and Rover V8 power, laying the foundation for the high-performance Marcos cars of the 1990s.

    Rover V8 Steel Chassis
    The Marcos Mantula, the first major modernisation of the GT formula with Rover V8 power
  7. 1992

    Mantara

    Marcos returned to full factory production with the Mantara. The familiar GT silhouette was modernised with uprated suspension and Rover V8 power, sold through dealers rather than as a component car. It became the platform that the LM-series race cars were built upon.

    Rover V8 Factory Built
    The Marcos Mantara, the marque's return to full factory production with Rover V8 power
  8. 1993

    LM500 · LM600

    Built for GT2-class racing on the Mantara platform, the LM-series carried Marcos to Le Mans. Flared arches, race-bred aero and stripped-down interiors made them as fast on the road as they were on the circuit. The LM600 added a Chevrolet 5.7-litre LT1 V8 for road-legal supercar pace.

    Le Mans GT2 Chevrolet V8
    The Marcos LM-series, built for GT2-class Le Mans racing
  9. 1997

    Mantis Road Car

    A street-legal version of the V8-powered Mantis Challenge racer. Lightweight, raucous and produced in very limited numbers, the Mantis road car carried the racer's DNA onto the public road.

    Limited Run Track-Bred V8
    The Marcos Mantis road car, a street-legal version of the V8 Mantis Challenge racer
  10. 1997

    Mantaray

    A softer, more modern reskin of the Mantara, with smoother lines front and rear. Offered with Rover V8s and a turbocharged 2.0-litre Tomcat four, it was among the last Marcos road cars of the era and was built in very small numbers.

    Rover V8 Restyled Mantara
    The Marcos Mantaray, a softer, more modern restyle of the Mantara
  11. 2002

    Marcasite (TS250)

    An open-topped evolution built on the Mantaray, sharing the same Marcos steel chassis. Smooth, modern and produced in small numbers, the Marcasite was among the final cars of Marcos's second era before the TSO programme.

    Roadster Mantaray-Based
    The Marcos Marcasite (TS250), an open-topped car built on the Mantaray chassis
  12. 2007

    TSO GT

    The last production Marcos before the brand's pause. Developed under Tony Stelliga with Damian McTaggart (formerly of TVR) leading design, the TSO GT housed a 6.0-litre aluminium V8 and was tested by Richard Hammond on Top Gear. On launch it was considered a rival to the leading sports cars of its era.

    6.0L V8 McTaggart Design Top Gear Tested
    The Marcos TSO GT, the last production Marcos before the brand’s pause
  13. 2026

    Manticore

    The return. A mid-engined British supercar targeting 200mph, naturally aspirated and paired with a six-speed manual gearbox. Designed, engineered, built and owned in the United Kingdom, and the start of the next chapter for Marcos.

    Naturally Aspirated · 6-Speed 200mph Target
    The Marcos Manticore, set to be revealed in Early Autumn 2026