Polish driver Robert Kubica says his chances of a Formula One comeback have risen to “80 or 90%” after a test with Renault at Spain's Valencia circuit last month.
The 32-year-old, the only Pole to win a grand prix, left Formula One in 2011 after a rallying accident that partially severed his forearm.
He had been one of the sport's brightest prospects, with a likely move to Ferrari on the horizon.
“If you asked me (before the test) how much I was realistically thinking that coming back to F1 was possible, I would have put myself up to 10 or maximum 20 per cent chance,” he told Britain's Auto Express.
“Because Im very realistic, and Im keeping my feet on the ground, Id put it at 80 or 90 per cent (now),” he added.
Kubica completed an impressive 115 laps in Valencia in a 2012 Lotus, with the test carried out in considerable secrecy, and said he had been stunned by how well it went.
