Derive the body type string from a model index into carFiles. Model filenames are /models/car-<bodyType>-<color>.obj.
carFiles
/models/car-<bodyType>-<color>.obj
index into the loaded car model array
the body type string
Derive the body type string from a model index into
carFiles. Model filenames are/models/car-<bodyType>-<color>.obj.