Interpublic Group is selling its Octagon Motorsports unit as part of its debt-reduction strategy.

Octagon’s assets include UK motor racing circuit Brands Hatch and the licence to organise the British grand prix at Silverstone.

Interpublic estimates the business’s value at £70 million ($109.7m; €103.4m), but is said to be willing to take £43m or possibly even less.

Data sourced from: MediaGuardian.co.uk; additional content by WARC staff