@Robah, its important that u understand the way Toyota company works, It may use one engine for diferrent body types, thus the compatibilty of engine parts. The toyota co. also produces a particular model for a short period and then replace it with another model. for example The toyota Ae90 and Ae91 were replaced with ae100, while 100 was replaced by ae110. 110 was replaced by the toyota corolla sedan(locally referred to as NZE). the NZE has also been replaced by the ZZE(Currently popular in the local govt). all this has happened and people are still buying the cars. This changes should not stop you from buying a car as spare parts become more available even after a model is phased out. i have not used the car but the Wednesday daily Nations motoring section by Baraza JM recommended the model for speed and stability.
Don't wait for the Last Judgment. It happens every day. ~Albert Camus, The Fall, 1956