But the availability of spare parts influences the resale value of the car (at least in India) which in turn influences the buyers of new cars to buy from manuf

But the availability of spare parts influences the resale value of the car (at least in India) which in turn influences the buyers of new cars to buy from manufacturers who provide spares at a reasonable price (Ex. Maruti in India). But I guess people who buy Teslas wouldn't focus too much on the resale value though.