I am planning to travel to Joburg with 11 family members in October. Rather than having someone lose out on the sites and scenes, we'd prefer to have a local drive us around. Anyone has any ideas on where I can find a reliable and safe chauffeur service who is also knowledgeable about the city, places to go, cultural and historical. Would like to visit Soweto and Mandela's home but do not want to be hung up by set schedules. Dire need to be flexible. Thanks for your help.