The return of Kubica? It would be big for the sport if he had a competitive car.
Kubica Says He Can Drive Without Limitations
"It turned out that [driving an F1 car] is not as scary and remote as it seemed to be. I can even admit that an F1 car was one of the easiest machines to drive with my limitations after my accident.
"Now I can sleep better because I know that I can drive a Formula 1 car without any limitations, I can drive quickly and consistently."
Kubica says he was in "shock" after the very first laps of his return test because of how comfortable he was driving an F1 car again.
"One of the best moments was returning to the pits after my first run when I realised that everything was under control and nothing had changed.
"After the first three laps it seemed that the break had not lasted more than a month. It was a shock as I had a lot of question marks after so many years [out of action].