British Formula One team on Friday said it would not appeal against last week's ruling by the International Automobile Federation (FIA) which cancelled all McLaren's points for spying on Ferrari.
The ruling meant Ferrari won the constructors' championship but left McLaren's drivers - championship leader Lewis Hamilton and reigning world champ Fernando Alonso - favourites to win the drivers' championship.
Hamilton leads the championship with three races to go, although Alonso cut his lead to two points - 97 to 95 - in Sunday's Belgian Grand Prix.
Ferrari's No.1 driver Kimi Raikkonen, who won on Sunday, is 13 points behind Hamilton and has an outside chance of preventing the Briton becoming the first rookie to win the title.
In its statement Friday, McLaren said it had told the FIA of its intention not to appeal the verdict "in the best interests of the sport".
It admitted that the September 13th FIA hearing proved that its suspended chief designer Mike Coughlan had "unauthorised possession of documents and confidential information" from Ferrari but insisted there was "no evidence that the information was applied, tested or shared with the engineering team".
"This information was not used to gain advantage on (McLaren) cars," the statement said.
McLaren boss Ron Dennis said: "We believe the time has come to put this huge distraction behind us".
FIA's controversial ruling was seen by many as illogical in not punishing the drivers.
FIA said this was because they had provided evidence in the investigation.
McLaren was also fined 100 million dollars by the governing FIA's World Council.
Ferrari welcomed the news, saying in a statement that it was "satisfied that the truth has emerged".
McLaren and Ferrari have been engaged in an off-the-track struggle for much of the season because of a 780-page dossier of Ferrari information found in Coughlan's hands.
The FIA shocked the Italian team in July by saying it could not punish McLaren for unauthorised possession of Ferrari information because there was no evidence the material had been used to gain an advantage in the championship.
But FIA then acquired copies of e-mails received by Alonso and McLaren test driver Pedro De La Rosa which reportedly indicated that the leaked Ferrari information was used to develop McLaren's cars.
