One of mine charges ?30 for the first hour and ?15 per hour after, the other one charges ?10 per each hour after. I go with the ?15 per hour after guy if possible though because he's a chatter lol Saying that, I'm up in Manchester, can't comment on rates down South, they could be different I guess. I'd normally pay ?20 in taxis so for an hour booking, the driver is definitely worth it, wouldn't do anything longer without putting prices up but I haven't been using drivers very long at all so happen not to have had longer to comment on what how I'd increase my rates.