Alonso the only 'genius' driver on the grid - Stewart

Triple world champion Sir Jackie Stewart has described Fernando Alonso as the only "genius" driver on the grid and "the most complete".

Stewart's high praise comes after he was asked to name the best driver in the sport. In conclusion, he came up with four names, but it was Alonso who stands out according to the 75-year-old.

"Mentally, probably Alonso," he told Marca, adding: "The fastest is perhaps Lewis Hamilton.

"Rosberg is definitely one of the best, more consistent, and on the same level I think is Vettel. Those are the best," he stated.

"In the world there are hundreds of millions of drivers, several thousand make their living from it, a few hundred live very well.

"There are 22 grand prix drivers, maybe six of them are really good, three exceptional, but there is only one genius. So if I had to choose the most complete driver I would say Alonso."

With the Spaniard having recently turned 33, often considered "getting on" in F1, Stewart thinks the opposite and says he's in his prime but questions his future plans.

"I think it's the perfect age. He has lived the good, the bad and the ugly.

"I don't know if he should change teams, but what I do know is that he will have to make that decision in the next six to eight weeks."