The possibility seems remote for the time being. But it did instantly tickle a part of my brain. If Räikkönen were to go to McLaren next year, then for whatever reason decide to end his career at Sauber, he would have a palindromic career. In other words, he will have worked his way back through each of the teams he has driven for, in reverse order.
The F1 teams he has driven for in order are:
Has any driver actually done this before?