your wish has come true vyselegend!McLaren-Mercedes has confirmed that double world champion Mika Hakkinen will test for the team at Barcelona on Thursday.
The Finn will spend the day re-familiarising himself with an F1 car after more than five years away from the sharp-end of the sport.
The news ends weeks of speculation about the 38-year-old's renewed interest in his former team.
"I'm really excited about driving a Team McLaren Mercedes Formula 1 car again and to be re-engaging with the team," said Hakkinen.
"I have followed F1 closely since my retirement at the end of the 2001 season, but it was when I was at this year's Brazilian GP as a guest of the team that I really felt I would like to get a chance to drive a Formula 1 car again."
According to McLaren, Hakkinen requested the test after spending several hours in the team's simulator since the season ended in October.
And while speculation over a full-time return to F1 racing has proved wide of the mark, McLaren admitted that it intends to use the test 'to benefit from Mika's experience and obtain his feedback with regards to changes in downforce, engine and tyres that have occurred since he last drove an F1 car'.
"I have recently spent some time in the simulator in Woking and to get the possibility to drive the MP4-21 is something I'm really looking forward to," added Hakkinen.
"I would like to thank Ron [Dennis] and Norbert [Haug] for making this happen.
"This test is a chance for me to see how much F1 cars have advanced and experience first hand what they are like to drive today as well as providing the team with some feedback on various aspects of the car's performance."
Hakkinen will take over from the team's regular test driver Pedro de la Rosa and will drive alongside McLaren's much vaunted protégé Lewis Hamilton.
"We are delighted to provide Mika with the opportunity to drive a Formula 1 car again," said McLaren team principal Ron Dennis.
"He is really looking forward to getting behind the wheel of a current Formula 1 car.
"A driver of Mika's calibre and experience can only bring added value to our testing programme and his feedback after Thursday's running will be valuable to the team in our preparations for the 2007 season."
Hakkinen is committed to Mercedes-Benz's DTM programme for 2007 but it is not inconceivable that he could dovetail this with more tests for McLaren in the future.
Dennis added however that "at this stage there are no plans for Mika to conduct further tests for the team."
Mercedes-Benz motorsport VP Norbert Haug also moved to quell speculation over a potential future role for Hakkinen.
"Everybody in the team is happy to see him at the wheel of our Formula 1 car again and we look forward to some interesting comments," he said
"However nobody should draw the conclusion that Mika will switch back to Formula 1 after this test."