Mercedes's CLA marketing campaign kicks off during the Super Bowl next month with an ad featuring the singer Usher and swimsuit model Kate Upton.

WSJ: German Luxury Car Makers Target Young

Although Mr Delaney would not comment on how the CLA gathered its evidence in Brighton's case, he disclosed that the CLA used several "weapons" to prove breaches, including Freedom of Information requests and a "whistle-blowing" system.

BBC: Brighton and Hove City Council pays for copyright breaches