I am booked on The South Africa tour starting in March and as Heathrow is a long drive from Merseyside I am looking at options such as the above or Coach travel. As not sure about coach times I thought about the chauffeur service which I imagine is very expensive. has anyone used it and any idea of prices please

If you Google "airport taxis" and the first part of your postcode, I am sure you will have plenty of choice.