I saw -$9000/vehicle and 40,000 vehicles and thought, that's only $360 million of losses. At the scale of Uber, that's just a cost of doing business. It's half of what it paid for Otto, and probably less than 1% of the startup costs for producing self-driving vehicles. To put it another way, $360 million one way or the other is noise on Apple's bottom line. It is 0.05 of the variation in GOOG market cap over the past…
$360 million is, though, a substantial portion of their ~$3b/year of losses. If I were an investor, I might question how many of these types of decisions were driving losses. The model may depend on subsidizing rides, but there's no reason to bleed more than needed.
The reason companies like Uber stay private is to keep out ordinary investors and for the ability to ignore the traditional haymaking of Wall Street analysts. All those subprime leases let Uber gain market and refine its product. The widely published per ride loss numbers reflect those leases because they are baked into the overall losses.