Robert Lukas, Marcin Jedliński, Wolf Henzler and Santiago Creel. This ended in retirement with undisclosed mechanical problems. LMP1 On 2 February 2017, Kubica was signed by the ByKolles privateer LMP1 team in the FIA World Endurance Championship. This came after he tested their car in November 2016 during the WEC rookie test at Bahrain, and lapped faster than the team's regulars managed on the race weekend. Oliver Webb will remain with the team, with a third driver for the Nissan-powered CLM P1/01 yet to be named. After the pre-season testing at Italy's Autodromo Nazionale Monza, where Kubica did not do any running, the driver announced via social media that he would not be participating in the forthcoming season. Formula E On 2 May 2017, Kubica partook in an independently organised test of a Formula E car at Donington Park, with an aim of partaking in the New York ePrix. This failed to happen. Returning to Formula One 2017: uncontracted testing On 5 June 2017, it was announced that Kubica would be driving in a Renault-organized test of their 2012 car, the Lotus E20, at Circuit Ricardo Tormo, his first Formula One event since his accident in 2011. Renault organised a further test, with Renault managing director Cyril Abiteboul stating that "he was still quick, still consistent and more importantly he still has the enthusiasm he always carried to the team". He added that there were "no obvious roadblocks" to a Formula One return, and told NBC Sports that Kubica could be an option for 2018. On 24 July 2017, it was announced that Kubica would participate in the test for Renault, which would be held after the conclusion of the Hungarian Grand Prix. Abiteboul, Renault's team managing director, said the test will allow the team to fully assess Kubica's current capabilities, and how likely he might be to "return to competition in the upcoming years". Kubica completed 142 laps of the Hungaroring on his return, finishing fourth-fastest nearly 1.5 seconds behind Sebastian Vettel. On 11 October 2017, Kubica completed a one-day test with Williams at Silverstone driving the 2014 FW36. On 17 October 2017, Kubica had a second day of testing with Williams at the Hungaroring. After Felipe Massa announced his retirement from the sport for the second time, Kubica became one of the top contenders to take his seat at Williams Martini Racing. He then tested for them at