[alx_the_new_guy]

>Cars, even electric, don't last as long as our bodies.

Because they're not built to, presumably because manufacturers are greedy and want to sell you a new one, and buying a new one is encouraged by consumerist culture.

Let's say effective human lifespan for physical labor is ~40 years (20 to 60). On average, commercial aircraft last 20-30 years, meanwhile the US military plans to keep B-52s in service at least through 2050s, which will make them roughly 100 on average.

It's not that machines can't last a century with proper care and maintenance, it's that they're not designed to.