Rivals pushing to triple Andretti F1 entry fee to $600m

Sources suggest that the 10 current teams want the anti-dilution fee to be boosted to at least $600m, with one team principal telling Autosport that it was the lowest figure that has been mentioned, and that it could go higher.

If agreed the new number could force Michael Andretti to reconsider his plans to enter with General Motors brand Cadillac, which are built around the current figure.

Andretti still has the option to buy an existing team, having previously…