Ecclestone came under fire in October 2004 when he and British Racing Drivers' Club president Jackie Stewart were unable to come to terms regarding the future British Grand Prix, causing the race to be dropped from the 2005 provisional season calendar. Negotiations with Ecclestone to keep the race in Formula One ended in the signing off a contract on 9 December to guarantee the continuation of the British Grand Prix for the following five years. In mid-November 2004, the three banks who comprise Speed Investments, which owns a 75 per cent share in SLEC, which in turn controls Formula One – Bayerische Landesbank, J.P. Morgan Chase, and Lehman Brothers – sued Ecclestone for more control over the sport, prompting speculation that Ecclestone might altogether lose the control he had maintained for more than thirty years.
A two-day hearing began on 23 November, but after the proceedings had ended the following day, Justice Andrew Park announced his intention to reserve ruling for several weeks. On 6 December 2004, Park read his verdict, stating that "In [his] judgment it is clear that Speed's contentions are correct and [he] should therefore make the declarations which it requests." However, Ecclestone insisted that the verdict – seen almost universally as a legal blow to his control of Formula One – would mean "nothing at all". He stated his intention to appeal the decision. The following day, at a meeting of team bosses at Heathrow Airport in London, Ecclestone offered the teams a total of £260,000,000 over three years in return for unanimous renewal of the Concorde Agreement, which expired in 2008. Two weeks later, Gerhard Gribkowsky, a board member of Bayerische Landesbank and the chairman of SLEC, stated that the banks had no intention to remove Ecclestone from his position of control.
In early 2004, he sold one of his London residences in Kensington Palace Gardens, never having lived in it, to steel magnate Lakshmi Mittal for £57.1 million. At Grand Prix venues, Ecclestone used a grey mobile home, known as "Bernie's bus", as his headquarters. In 2005, Ecclestone sold his £9 million yacht Va Bene to his friend Eric Clapton.