if you are flexible and give an exceptional service it is possible to earn good money,
the big problem for any start up is that as a one man band when you reach the critical point between being confortably busy and over stretched,
i dont advise paying to 'be on a circuit' because the prices will be skimmed and you will have to pay out in the hope of some good work,
a better way is to get acquainted with another small but good outfit in your area in order to benefit from picking up their overflow and more importantly you will have someone you trust to cover your overflow and so retain your client,
customers in this game are a fickle lot, you can give exemplary service for years and if it goes only slightly wrong on one occasion its bye bye,
get your private hire licence and then your operators licence, which allows you to take bookings, and if you are going to run an s class ask your licencing officer if they allow luxury end cars to be unplated, you will still have to compliance the vehicle but being a clean car on the outside helps the image,
it is ludicrous in london where brand new rollers used for ad hoc chauffeuring have green licence badges displayed front and back,
good luck , get yourself an electronic point of sale machine for cleared card payments and dont start off too cheap as it will be difficult to jack up your regulars,
i was a ph operator for 6 years in kent and now run the transport for a london hedge fund having been head hunted by a regular customer,
getting regular business is all about image, their is almost no requirement these days for full chauffeurs uniform but a nice suit, shirt and tie is a must, i would get a simple but quality brochure produced not showing prices,