Toto Wolff has led Mercedes to record-breaking success in F1

Toto Wolff is in advanced talks to sell part of his shareholding in the Mercedes Formula 1 team.

The deal values Mercedes at £4.6bn - a record for an F1 team - after McLaren were valued at £3.5bn in a change of ownership structure in September.

Wolff, who owns one-third of Mercedes F1, would sell a shareholding in the region of 5%.

The 53-year-old would stay on as team principal and chief executive officer if the sale goes through.