Editing Marcos Engineering (section)

==Marcos 1800GT==
{{main|Marcos GT}}

[[File:1970-71 Marcos 3 litre (Volvo) at Oldtimer Expo 2008.jpg|thumb|1970–1971 Marcos 3-litre, Volvo-engined]]
In 1964 the [[Marcos GT|Marcos 1800 GT]] was introduced, using the four-cylinder [[Volvo B18 engine]] with [[Overdrive (mechanics)|overdrive]] gearbox and [[De Dion tube|De Dion]] rear axle. This was to be the design that would become familiar to sports car enthusiasts for more than 30 years, even though the original plywood chassis was later replaced by a steel chassis. A variety of other engines, mostly from Ford, but also from [[Triumph Motor Company|Triumph]] and Volvo, became available over the years. In 1966 the GT was changed to Ford engines of originally 1500 cc, later 1650 and 1600 cc, and a coil-sprung live rear axle. In 1968 the [[Ford Essex V6 engine (UK)|Ford Essex V6 engine]] from the [[Ford Capri|Capri Mk1]] was added. In 1969 the plywood chassis was replaced by steel, which shortened production time and saved on cost, and the [[Ford Essex V4 engine]] replaced the earlier inline-fours. In 1971 a few cars with Triumph 2.5-litre straight-sixes were built, to use up engines from the slow selling [[#Mantis|Mantis]]. As the bonnet was a close fit over the engine, this variety of engine resulted in a corresponding variation in the bonnet design, particularly as regards changes designed to clear engine air intakes, often the only external sign of the type of engine fitted.

The Ford V6 version achieved over {{convert|120|mi/h|km/h|abbr=on}} on test and the Volvo-engined model was not far behind it, but the heavy cast-iron engines increased nose-weight in comparison to the four-cylinder variants. From 1970 cars for the North American markets received Volvo's inline-six cylinder, three-litre engines coupled to Borg-Warner automatic transmissions. These have tubular steel space frames, a higher ride height and no headlight covers, to achieve US road certification. Delays and problems with the federalised cars, together with the development costs of the Mantis, led the company to close its doors for the first time.

The Marcos intellectual rights, including jigs, build files and logos were bought by Marcos director Rory MacMath and are now working under the title "Marcos Heritage Spares" as a restoration and parts company for Marcos Cars (see contact details below for website).