A group of bondholders have warned Aston Martin they may begin legal proceedings over its £550m financing arrangement with HPS Investment Partners, the Financial Times (FT) reported. Aston Martin has not set out the detailed terms of its agreement with HPS, leaving creditors without full visibility over the transaction. Earlier this year, Aston Martin raised £50m through the sale of naming rights for the Formula 1 team racing under its brand. In the first half of the year, Aston Martin reported just over £19m in "net marketing expense" related to sponsorship, representing the cost of paying AMR to keep using the Aston Martin name after that sale. "Bondholders threaten action over Aston Martin HPS financing deal – report" was originally created and published by Just Auto, a GlobalData owned brand.