F1 to rival NBA and NFL teams valuations, predicts Aston Martin chief Sport Business Formula 1 teams are on course to rival top US sports franchises as the most expensive in the world following a boom in valuations, says Aston Martin F1’s commercial chief Jefferson Slack. This month’s sale of a minority stake in Mercedes F1 valued the team at $6bn (£4.6bn), while McLaren were valued at around $5bn [...]