Thanks for all the suggestions and input.

I do agree vehicle costs are high, but you also dont want too look unreasonable to clients, as some clients have their own internal rate per km that they normally use for their own employees, which is often lower than the AA!

I like the idea of a standard sort of rate for a certain radius - call out type.

Also if travel time is not charged for by actually having a line item on your invoice for it, it will have to be recovered in some manner i.e. built into your costs somewhere along the line as it is still your time even if you use the best route possible with no delays some journeys take alot of time, hours sometimes. Time is money! Just my take on it!