I'm very determined', Postie who took on car finance giants - and won

Self-styled as the Erin Brockovich of the Potteries, and described by the court of appeal as "a postman with a penchant for fast cars", Andrew Wrench is a force to be reckoned with.

- Hannah Al-Othman

And while he may not be a household name yet, those who work in the multimillion-pound car-leasing industry will be all too aware of his campaigning zeal.

Wrench is one of a small group of motorists who could have won billions of pounds for consumers across the country by taking on two finance companies in the courts.

Wrench, 60, who lives in Trentham, Staffordshire with his wife, Louise, 46, and 16-year-old son, Ethan, has no legal training but was motivated to fight his case after he discovered that car finance lenders had been paying commission to the dealerships where he bought two cars - an Audi TT coupe and a BMW 3 Series - without his knowledge.