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Description: Ginetta G40 Frame, Body & Panels

Frame & main body shell

The G40 is built around a tubular frame (T45 tubular chassis and integral safety cage built to FIA standards). The main body shell is bolted and glued onto the frame and can't be adjusted. Adjustments are only possible on the panels that fit onto the main shell: doors, boot lid and clamshell / bonnet.

As far as I understand, the tubular frame is a heavier gauge for GRDC and G40R (road-legal) cars than the G40 Junior and GT5 cars. GRDC and G40R are therefore slightly heavier. The Ginetta website quotes the GRDC / Cup as 840 kg, Junior as 830 kg and GT5 as 815 kg. See my page Description: Ginetta G40 Power to Weight, where the GRDC weight is measured at 915 kg.

Ginetta G40 panels are made of gel-coated fiberglass, with the exception of the Junior cars from 2018 which have carbon-fibre door skins.

Door weakness & adjustment

Be careful with the doors and don't push them up or down too much, as the lower hinge mounting will probably crack in the door. You can only fix a cracked hinge mounting by removing the door and finding a way to re-strengthen it - see what we did in Procedure: Ginetta G40 Door Hinge Repair.

If the door is not closing, the best way to adjust it is to move the latch-receiving pin on the body.

To move the latch pin, remove the rear road wheel and reach up inside the wheel arch to loosen the two 13mm nuts.

Door removal

Remove the door by unbolting the two pins / bolts that sit vertically  through the hinges.

Clamshell / bonnet & pins

The bonnet / clamshell is held down by two AeroCatch hood pins. The pins can break, such as from an off-track excursion. You can get replacements from Ginetta, or direct from Tegiwa. They come in pairs.

Boot / trunk / club car

The 200-litre boot and passenger space are good for a tool box, trolley jack, fluids and a few 5-litre fuel cans, so it's feasible to use the G40 as a club car, driving to the track if you keep it road-legal.

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