I’m almost 40, live in upstate New York (ie. Cold, snowy). Maintenance for a regularly driven car is all about mileage. Suspension and electronic motors start falling off at $150k miles.

Per mechanic friends, most better cars go until about 250k miles with modest maintenance issues, and after that things like transmissions fail and are not a good value.

The problem with the pooling is that any outlier blows the financial model. Whatever interest I would make would be wiped out by a single event where I’d need to rent a car.

There’s a place for things like Uber (or traditional taxis) and zip car. But unless you barely use a vehicle or cannot afford one, it’s a pain in the ass to share.