Paris - Polish driver Robert Kubica, whose career looked over when he partially severed his forearm in a 2011 rally accident, will test Renault's current Formula One car on 2 August in Hungary
Renault on Monday described the decision as a "a new phase in assessing Kubica's capabilities". The 32-year-old returned to the cockpit in Renault's 2012 car in June and had a second test earlier in July.
The in-season test in Hungary will be Kubica's first time driving a current F1 car and is the clearest sign yet that he is being considered for a race comeback, amid speculation that he could replace Britain's Jolyon Palmer, who is yet to score a point in 10 races this season.
Renault F1 managing director Cyril Abiteboul said: "The first two days of testing allowed both Robert and ourselves to gather a great amount of information.
"The upcoming session with the R.S.17 at the Hungaroring will allow us all to obtain detailed and precise data in a current car and representative conditions.
"After this test, we will carefully analyse the collected information to determine in what conditions it would be possible for Robert to return to competition in the upcoming years."
Kubica won the 2008 Canadian Grand Prix with BMW-Sauber and joined Renault in 2010. His arm injury, in a rally he entered for fun in Italy, came before the start of the 2011 season.