Beyond the main floor carpet set, a number of individual carpet pieces cover the secondary areas of the MGB cabin, surfaces that are just as visible to anyone sitting in the car and which complete the interior when the main carpet set alone does not reach every area. Wheel arch carpets cover the inner rear wheel arch intrusions into the Roadster cabin. On an open two-seater these are a prominent feature of the cockpit, and specially shaped pieces of carpet were fitted over the inner rear wheelarches from the outset of production. The GT had additional carpet covering the boot floorboard and the small pockets formed on either side of the boot behind the rear wheelarches. These areas are among the first to show wear or fading from UV exposure and heat.
Sill carpets finish the inner sill area between the floor and the door aperture. The sills were originally covered in rubber rather than carpet, sill carpeting was not standardised until the 1977 model year when full carpeting was introduced across all cars. Sill carpets are therefore particularly relevant to post-1977 cars and to earlier cars that have been upgraded from the original rubber sill covering to full carpet, as the 1975 Jubilee GT was the first production car to receive. Toeboard and rear floor carpet pairs are available for post-1968 4-synchro cars.
As with all carpet components, colour matching to the existing interior is important, the original carpet colour always matched the main trim colour, and the carpet material changed from Firth’s loop-pile to cut-pile at the 1972 model year, so even within a single colour name the texture and appearance can differ between production periods.