Sir Frank Williams has set tongues wagging by being a guest of Mercedes-Benz at the Brands Hatch round of the DTM series last weekend.

Sir Frank Williams has set tongues wagging by being a guest of Mercedes-Benz at the Brands Hatch round of the DTM series last weekend.

The Briton is on the lookout for a new supply of customer engines for his famous formula one team next year, but was thought to be closer to securing a deal with Renault.

Another possible reason for his DTM visit is the fact his star driver Nico Rosberg, who is out of contract at the end of the season, is linked strongly with a move to McLaren-Mercedes.