Earlier quoted context omitted.
To be fair here, unless you're driving a luxury car like a Tesla, your depreciation, gas and maintenance costs are still probably $5/hour or less. So, call it $16/hour, and it's still well above minimum wage and most living wages. You're adding extra danger due to potential crash concerns etc, but I don't really know how to best quantify that. http://commutesolutions.org/external/calc.html
Your assumptions may be incorrect. Here is an article that was on HN a couple months ago: http://brent-noorda.blogspot.com/2013/11/how-much-does-lyft-... According to Consumer Reports (see linked article), the median car costs about $9k per year for the first 5 years (including the sticker price). That comes out to $0.75 per mile--not an insignificant amount. Driving 30 miles per hour, that's $22.50 in costs.
This sounds like a poor deal to me.