The question wasn't for me, but since I ran those numbers, thought maybe I could help.
Full time ride sharing in any car is tough, not very profitable, and I wouldn't recommend it.
If you truly "ride share" though (pick up people on the way to/from work), the added mileage is minimal, and revenue is "almost" pure profit.
Where I live, I estimated the cost per mile for me to be ~40 cents.
Including dead miles, typical revenue is around $1 per mile
Tips are extremely important on those platforms to generate any profit, and although I don't have experience Ubering with other cars, I believe from what I hear that I am making more tips than the average driver.