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Ginetta G40 Body Panels & Adjustment (Description)

Ginetta G40 panels are all made of gel-coated fiberglass, with the exception of the Junior cars from 2018 which have carbon-fibre door skins. Panels on the G40 fit together slightly differently on each car, and adjustment is done by factory engineers if the fit is significantly out of line. 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). Those adjustments may involve sanding of the panel edges. Minor adjustments can be done DIY-style, as described below.

Boot / trunk and adjustment points

There are several bolts and levers in the boot lid fixing mechanism. The photo below shows the three bolts used for adjustments of the height and lateral dimensions. The same bolts are on each side of the car. You will need a 3 mm Hex / Allen key for these bolts.

The 200-litre boot is good to hold a tool box and a couple of 5-litre fuel cans and other fluid bottles, so it's feasible to use the G40 as a club car, driving to the track if you keep it road-legal. Most GRDC and G40 Cup competitors don't keep their G40 on the road, however.

Door adjustment

The side doors are a bit of a weakness on the G40. You may find that they don't close easily and need adjusting, or even that they droop due to damage to the hinge mountings. Be very careful with the doors and don't lean on them, 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.

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

If the door is not closing fully, loosen the latch pin and move it outwards, away from the driver's position. To loosen the latch pin, remove the rear road wheel and reach up inside the wheel arch to loosen the two 13mm nuts (see photo).


The bonnet / clamshell is held down by two Aerocatches. These catches comprise a pin and catch mechanism. The pins can break, such as from an off-track excursion. You can get replacements from Ginetta, or elsewhere, although you should be aware of the thread types used. It's possible that there are two different thread types, so it's best to buy from Ginetta.