The sparring underlines the battle ahead for the world's most popular internet search engine, with two other challenges against EU antitrust enforcers to be heard in the coming months. The Alphabet unit argued that additional amounts tacked on to the fine imposed by the European Commission in 2017 to deter anti-competitive behavior known as a deterrent multiplier and another multiplier factor was excessive and unwarranted. Google's challenge came on the final day of a three-day hearing at the General Court, Europe's second-highest, as it attempts to overturn the first of a trio of EU antitrust penalties totaling 8.25 billion euros. "2.4 billion euros is an eye-catching amount, it might attract the headlines but it is not justified by the actual facts of this case," Christopher Thomas, Google's lawyer, told judges.