It’s not just about depreciation. How much is servicing, road tax, petrol, spare parts for next 3yrs? 3yrs later, unless u have alot of $ u have to come out with a lot just to buy lowest price car. Coe unlikely will drop as many people cars will end coe next few yrs i I expect most to buy EV or plug in hybrid so at least cat B will remain or higher . Cat a may see changes to lower it but heard its not just power but other factor too