Marcos GT 1964–1972 car dimensions: 4039 mm long, 1334 mm wide and 1054 mm high. Unladen weight is 916 kg.
The cabin is extremely low with a nearly supine driving position and fixed seats built into the structure. Pedals adjust fore and aft via a dashboard knob to fit different drivers, with optional booster pillows available. Early cars feature a novel scalloped dashboard with prominent centre console housing gauges, switches, radio and heater controls. later models use a simpler flat wood or wood-effect dash. Visibility is good once seated despite the low roof. A heater is standard. air conditioning was an option on some US-market cars. The interior uses high-quality trim, carpeting and lining, with an aircraft-like cockpit feel. No modern driver aids appear in period specs.
The boot is lined with quilted material and holds the spare wheel, fuel tank and battery while still taking luggage for two on a lengthy trip, such as one reasonable suitcase plus one or two soft bags. A small package space sits behind the seat backs for a soft suitcase or flat items. Door pockets and glovebox handle small objects. No volume figures in litres are published.
Carrying capacity is listed at 160 kg. No towing ratings appear in any specifications or brochures. The car is a pure sports coupé with no work-use equipment noted.
The cabin is low and snug with fixed seats built into the structure that put the driver in a near-supine Grand Prix style position. Pedals adjust fore and aft via a dashboard knob for legroom. Seats offer strong support and the trim, carpets and lining are finished to a high standard. Visibility is good once settled though entry is awkward due to the extreme lowness. A Webasto sunroof was fitted as standard on the 1650 and optional elsewhere.
Requires 97-octane petrol.
Engine oil change every 3,000 miles.
Gearbox and final drive oils every 12,400 miles.
Front disc brakes, rear drums.
Fuel consumption around 30 mpg imperial.
The car runs on 97-octane petrol from a tank of about 12 imperial gallons. Early figures put consumption near 30 miles per imperial gallon under normal use.
Servicing calls for engine oil changes every 3,000 miles with gearbox and final-drive oils at longer intervals around 12,400 miles. Greasing points need attention at similar mileages. Parts such as Volvo or Ford engines and Triumph-derived suspension components remain obtainable through specialists.
Braking is by front discs and rear drums, with competition upgrades available as options. No formal crash-test ratings exist for the era. The wooden monocoque and later steel chassis proved strong in competition use but the low build and fixed seats demand care when entering or leaving.
Keeping one means watching the plywood or steel structure for moisture or corrosion, checking the adjustable pedal mechanism and maintaining the fibreglass body. Specialist clubs and spares suppliers support long-term ownership.
Length 4039 mm, Width 1334 mm, Height 1054 mm, Wheelbase 2261 mm (GT 1964–1972)
Sources: manufacturer data and published specifications.