Every Toyota vehicle has a model code which describes the basic vehicle (e.g. Corolla), its generation and major options (engine type, gearbox type, body style, grade level).
Each model was known by its engine code and a single letter for the chassis/body.
Examples: Each model was known by its engine code, chassis code, one or two digits for its generation, a single digit for variations within the generation and more letters representing options.
[1] Engine family: Platform: Steering: Options: The new code was similar to the previous but now the options were grouped into specific columns.
[2] Engine family: Platform and model name: Steering: Wagon: Model name: Body type: Transmission: Grade: Engine class: Destination :