I see a car as an appliance that should be replaced and recycled rather than fixed for significant issues. change my mind.
Good luck with that one buddy. Cars ain't that cheap, significant repairs are often cheaper than the cost of a new vehicle.
Disposable anything is the blight of the modern age, here in Sweden I see a small movement towards buying 2nd hand for most things and... It just makes sense for a lot of items: kitchen appliances, sewing machines, power tools, home theater speakers, etc.
Reduce, reuse, recycle. Why have we forgotten the first 2 Rs? I learned this in school during the 90s, it's been 30 years and people still have a "disposable mindset". It's terrifying...
The cost-of-entry should be high, but with a high production rate, aggressive recycling and a consistent user experience, the cost-to-stay should be minimal. Car terminally breaks? Replace it with another one, and recycle the original to make a new one for someone else.
Minimal (ideally zero) waste, minimal impact on the environment, easier for all parties (customer is waiting at-most a few days for a new car; manufacturer spends time servicing lower-impact issues that could be addressed remotely at customer's homes; insurance payouts are less complicated since the resolution matrix is smaller), and significantly safer (new car that's known-good vs a repaired car with unpredictable failure modes due to alteration)
Plastics, leather, cloth, rubber printed circuit boards and such require significant labor to separate from eachother, and even if that labor is already done the cost to recycle it is higher than using virgin materials, and the result is lower quality.
I wish I was joking...
The last car that I had to sell because I could not afford fixing had a $5,000 repair quote. Not because of the ice engine. Not because of the gasoline.
Because the wire harness was corroded.
Stop dreaming that electric cars do not need maintenance. Maybe not as regular maintenance as ice cars, but definitely they will be eoled in the same lifespan as ice cars.
Replacing, and diagnosing, a modern cars harness for 5k is actually quite reasonable if not even cheap. Especially since the harness rebuild means basically disassembling the majority of the car simply to get access.
But wear and tear impacts all cars operated in the real world, not just gasoline cars. An EV is not magical, just another type of vehicle. Its most frequent failure modes are still being discovered as we put more miles on it and gain experience.
Source: work in the automotive manufacturing industry.
If yes, what's the cost of recycling said unit and raw material recovery ratio when compared to changing the said part and continue using it?
Using items for a longer time by maintaining them is better for environment.
In certain situations (eg: the California Fiat 500e leases, where you paid nearly nothing due to tax credits over 3 years) the math can work, but outside of financial engineering from beneficial state and federal tax incentives the upfront cost of the car or the monthly payments plus the increased insurance cost (due to needing to carry full replacement coverage) means the lifetime cost of ownership doesnt pencil out.
Such bullshit.