Dutch sat nav darling Tom Tom has taken American rival Garmin to court in the Hague, demanding it scrap two products which it claims are too similar to its own GO series. The two are already embroiled in a string of patent lawsuits in the US.

Tom Tom claims its GO series was a ‘revolutionary design’ while Garmin says it was simply a small step forward. The court will rule on November 1, in time for the Christmas rush.