There are some Mercedes cabbies are surviving from sweeping the
floor and getting MDT jobs = which is perfectly fine. just lower
their expectations.
Mercedes cabs are paying daily rental from $124 to $136.
Soon will be $159++ for the newer fleet
Sonata cabs are paying daily rental from $102 ? 
Hence the difference is between $22 and $34 per day. Half
shift will be $11 and $17.
One Month (30days) $330 and $510.
One Year (365days) 4,015 and 6,205.
I am not taking the different from the New Daily Rental
yet.
If I am taking the $159 daily rental, even
if you drive half shift, you may end up paying $10,402.50 different
from Sonata cabs.