Kimi Raikkonen is to team up with Fernando Alonso at Ferrari for 2014, .
Ferrari’s announcement on Wednesday came a day later than expected.
Lotus had hoped to retain the but the 33-year-old found Maranello’s offer to difficult to resist.
The 2007 F1 world champion had initially courted Red Bull but they opted for Australian Daniel Ricciardo from Toro Rosso.
Raikkonen leaves Lotus amid reports he had financial issues with the team and a giant question marks hanging over its future.
Speculation intensified when Felipe Massa announced on Tuesday night via Twitter he would be leaving Maranello at the end of the year.
And a day later the Finn’s move was confirmed.
Earlier in the day Ferrari had confirmed to Raikkonen’s only rival for the seat – Nico Hulkenberg – he would not be required.
Teaming him up with double champion Fernando Alonso gives Ferrari the strongest line-up in the pitlane.
It was a move many thought would not happen.
Although he became their first champion in the post-Michael Schumacher era he fell out with the team a year later.
They paid off his contract a year early – to the tune of £15m – to make way for Alonso.
After contract talks to join McLaren in 2010 collapsed over his unreasonable salary demands Raikkonen turned to the World Rally Championship.
After a two year sabbatical from he returned in 2012 with Lotus and won the Abu Dhabi Grand Prix.
The following season started well as he added a victory at the opening round in Melbourne.
Although rumours of financial issues between driver and team refused to go away the 33-year-old was generally expected to remain at Enstone, at least until the Monza weekend that was.
In their usual laconic fashion(just two sentences not even two lines long) Maranello finally confirmed on Wednesday what had been suspected for days.
Massa is yet to announce which team he will be driving for next year.
Fernando Alonso paid tribute to his current Ferrari team-mate with the following tweet:
All the luck for next years! You will be a strong opponent in any team! And we still have 7 GP to have some fun!
— Fernando Alonso (@alo_oficial)