That people think vehicle wear costs are negligible is how Uber manages to convince people to drive for such low wages. People are bad at math.
So assuming 150 miles per 8 hours, the average uber driver is paying about $11/hr in fuel and depreciation costs.
So the net income after that would probably be more like $9/hr.
1: http://newsroom.aaa.com/tag/driving-cost-per-mile/
2: https://www.quora.com/How-many-miles-does-a-full-time-driver...
Curious what the huge discrepancy is there (between self-reported and gathered data), though without being able to see the underlying data I guess we can't tell.