Fernando Alonso insists the Woking-based McLaren team never favoured British team-mate and title rival Lewis Hamilton.
The Spaniard announced his departure from McLaren on Friday after an incident-pcked year.
The double former world champion finished behind rookie team-mate Lewis Hamilton and third overall in the drivers' standings in 2007.
Alonso's agent Luis Garcia-Abad claimed the divorce from McLaren had been smooth but did not shed any new light on the Spaniard's future.
"All ended well," he said.
At Renault, Alonso had won back-to-back titles and he arrived at McLaren fully expecting to capture a third.
Shocked
But Hamilton shocked everyone by winning a series of races to overtake Alonso as the McLaren number one. The pair also had a number of run-ins during the season.
In his statement, Alonso spoke of the realisation of a dream: "Since I was a boy I had always wanted to drive for McLaren, but sometimes in life things do not work out."
The 26-year-old, who had two years left on his deal, felt things had not gone according to plan.
He said: "We have had our ups and downs during the season, which has made it extra challenging for all of us, and it is not a secret that I never really felt at home.
"I know there have been suggestions of favouritism within the team and people say a lot of things in the heat of battle, but in the end I was always provided with an equal opportunity to win."
Alonso, who has been linked with a return to Renault in recent months, will have no lack of offers for a drive next season.
Nico Rosberg of Williams and Renault's Heikki Kovalainen are among the favourites for Alonso's McLaren seat.
McLaren boss Ron Dennis also admitted the team and Alonso had not been able to resolve their differences.
"He is a great driver but for some reason the combination of Vodafone McLaren Mercedes and Fernando has not really worked out, and in the end we reached a stage where none of us could find a way to move forward," said Dennis.
"We all believe that our joint decision to part company is for the best, and we will now continue to focus on our 2008 world championship challenge."