Addison Lee sold to US private equity firm Carlyle Carlyle can help the company move forward in a way that we wouldn't have been able to do ourselves. Addison Lee already has partnerships with taxi firms in Paris and New York that enable its customers to order a car in these cities via the company's app. "This is something we're experimenting with, and if it works out well, it's something we now have the ability to expand," said Mr Griffin. However, he stressed that the company's focus remained on the London market. We're very much a central London company at the moment. Lots of people that use it in town live in the suburbs, and we believe that there is an opportunity to provide a service that isn't currently available to people in those regions. John Griffin's career in the minicab business began when he was forced to cut short his apprenticeship as an accountant and turn to mini-cabbing to rescue his father's business. Liam Griffin, who celebrated yesterday's windfall with "a can of coke," said his family had no plans to begin other ventures. This is still the family business, and this is still what I've eaten, slept and breathed for the last 40 years. This is what I enjoy doing. I have no intention of doing anything else.