Understanding Your Interior
There 
are three basic types of seats:
1) Bucket seats are individual seats, most commonly found in sports cars. In high performance sports cars, bucket seats are very contoured and form fitting,
with built-up sides to support both driver and passenger during sharp maneuvers.
2) Bench seats, commonly used as rear passenger seats, span from side to side and are non-adjustable. Some rear bench seats, contoured to give the appearance of
bucket seats, match the styling of bucket seats.
3) Split-back bench seats are front seats with individual backrests that tilt forward to allow passengers to get into the back seat area.
Regardless of style, all seats are made of individual sections (panels) that are sewn together. Typically, the parts of the seat closest to the door
wear out first. When this happens, an individually sewn seat panel can be replaced without having to replace the entire seat's upholstery.
There are two types of door panels:
1) The older panel board style is distinguished by its flat appearance (with the exception of the door pull/armrest and window crank). This door
panel style often has a strip of carpet on the lower half and can easily be reproduced or just the individual vinyl cover or carpeting can be replaced.
2) The molded door panel is distinguished by its contoured shape and its incorporation of a door pull/armrest. These panels, usually made of plastic,
need to be replaced in their entirety when damaged. Some molded door panels have a vinyl insert or cloth section that can be replaced without replacing the entire door panel.
There are three styles of carpet:
1) The panel-style carpet, often found in European cars, is made of individually bound sections. Often the floor pieces are removable for cleaning.
Panel-style carpet allows easy repair, since each section can be replaced separately.
2) Cut-and-sewn carpet, often found in pre-1960 domestic cars, covers the entire floor with one or two pieces of carpet. The carpet has
been cut-and-sewn together in various places, so it covers the different shapes and contours of the car's floor plan.
3) Molded carpets came into use in the 1960s, replacing the cut-and-sewn style, due to their ease of manufacture. Like the cut-and-sewn, molded carpets
cover the entire floor with one or two pieces of carpet but with no seams.
When either cut-and-sewn or molded carpets become worn or damaged, the entire carpet usually needs to be replaced. In some cases, if a carpet
becomes soiled or faded, it can be re-dyed rather than replaced.