The full list of Britain's wealthiest figures will be published in the Sunday Times this weekend.
Hamilton stays narrowly ahead of Jenson Button, who has also added £5m to his fortune in the last year and is now worth £58m.
Scottish motor racing driver Dario Franchitti, who is a four-time champion of the IndyCar series in America, is worth £50m, up £4m on last year.
- Sports & Recreation
- Motor Racing
- Lewis Hamilton
- Jenson Button