Robert Kubica believes he answered a lot of doubts he had about his ability to compete again in Formula One, but says it is still too soon to address his future after a stellar showing on his official return to testing in Hungary.
The Pole has not raced in F1 since 2010 after suffering severe arm injuries in a rally accident, but has twice tested the 2012 Renault as he builds towards a potential return.
Kubica's first outing in the latest Renault model was a fruitful one, with the 32-year-old racking up 142 laps and producing a best time of one minute and 18.572 seconds – which was just a tenth of a second short of Jolyon Palmer's Hungarian Grand Prix qualifying time – on the ultra-soft tyres to finish the day fourth quickest.
But, while relishing his opportunity, Kubica erred on the side of caution when discussing his next step.
"It was a fantastic feeling for me to be here in the R.S.17 and also it was amazing to see so many fans come to see me out on track, so thank you to all of them," he said.
"It has been an incredible journey to this point, where I have answered many questions to myself. I learnt a lot about the latest generation car, as there are a reasonable amount of differences between it and the Formula 1 cars I have driven in the past.
"The car is certainly wider than before. I was able to work through the team's programme methodically and I think we made good progress.
"Certainly my understanding of the R.S.17 and the 2017 tyres came on a lot. After today, it's too early to say what the next step might be.
"For now, I owe a big thanks to everyone at Renault Sport Formula One Team for making this test happen."
World championship leader Sebastian Vettel was quickest, but his Ferrari team-mate Kimi Raikkonen was outpaced by British rookie Lando Norris who impressed on his McLaren debut.
The 17-year-old, a star in the European Formula 3 Championship, clocked a fastest time of one minute and 17.384secs and completed 91 laps as McLaren suffered no repeat of the reliability issues that plagued them on the first day of testing.
20. Oktober 2017
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|Scotland forward Hardie suspended|
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|McTominay lands new Manchester United deal|
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|Rose ready for Spurs return, but won´t start vs Liverpool|
|Koeman confident Everton signings will come good|
|Under-fire Burki lands new four-year Dortmund deal|
|Conte admits to Chelsea midfield crisis ahead of Watford clash|
|Sanchez and Ramsey boost Arsenal for Goodison trip|
|Halep to face Svitolina, Wozniacki and Garcia in Singapore|
|Mane still in rehab, but Klopp won´t block Senegal call-up|
|Kaepernick not blackballed by NFL, claims 49ers owner York|
|Mourinho has ´a feeling´ Ibrahimovic will be back in 2017|
|Conte dismisses Mourinho feud as ´a stupid issue´|
|Always Man City can do better - Guardiola challenges Premier League leaders|
|Aaron Rodgers posts ´comeback starts now´ photo after surgery|
|Klopp anticipating Spurs thriller after Man Utd snoozefest|
|Mawson and Daniels join Mata´s Common Goal|
|Hughes thankful for Stoke stability after ´emotional´ Premier League sackings|
|Bosz determined to turn around Dortmund slump|
|UEFA charge Everton after fans strike Lyon players|
|Adelaide United 2 Melbourne Victory 2: Austin pegs back United after Lia double|
|Webb heartbroken by ´joke´ new Wales selection policy|
|Real Madrid blow as Navas suffers thigh injury|
|Muller close to his old self again, says Heynckes|
|Everton ban fan involved in ugly Lyon scenes|
|Boyd ´very close´ to new Broncos deal|
|British Cycling doctor at centre of ´mystery package´ investigation resigns|
|Manchester City star De Bruyne wants trophies, not awards|
|UEFA charge Roma over alleged racist chanting at Chelsea match|
|Ibrahimovic tipped for December return by training partner Cole|
|Savea replaces injured Todd on All Blacks bench|
|Schweinsteiger ´open to everything´ as he nears end of Chicago Fire contract|
|Ferrari issues have handed Hamilton the title - Button|
|Neymar confirmed wish to leave Barcelona at Messi´s wedding, says Xavi|
|Thomas battles to stay among the leaders as Luke tops the List in Jeju|
|Kershaw jokes he ´might retire´ if Dodgers win World Series|
|Westbrook posts historic triple-double for new-look Thunder|
|Espargaro edges Marquez, Dovizioso in practice|
|Raiders claim exhilarating win over Chiefs|
|Cronk wants to play in 2018, says agent|
|De Bruyne: Man City, United fighting for title|
|Dodgers crush Cubs to reach first World Series since 1988|
|Marshawn Lynch ejected after shoving official|
|WATCH: Hernandez crushes Cubs´ hopes with grand slam|
|Vettel retains F1 title hope|
|LeBron still trying to get into playing shape|
|Wilshere will get Premier League chance – Wenger|
|Giroud: I got lucky with Red Star winner|
|Astros manager Hinch reminds everyone ALCS is not over|
|Lakers coach Walton says players will ´come after´ Lonzo Ball|
|F1 Raceweek: Hamilton dismisses title talk as Alonso eyes future challenge|
|Montella urges fans to ´stand by´ Milan after San Siro boos|
|Koeman admits he could be sacked by Everton|
|Carreno Busta´s Finals hopes take Moscow blow, Dimitrov and Goffin stay on course|
19. Oktober 2017
|Gloucester back on track with Agen hammering|
|Everton 1 Lyon 2: Koeman feeling the heat, while Williams brawl overshadows spectacle|
|Bridgewater: I definitely believe I will play this year|
|AC Milan 0 AEK Athens 0: Frustration mounts for Montella in dour draw|
|MRI on Warriors forward Green´s knee negative|
|Giroud promised special winner, Wenger reveals|
|Injured Kyrgios finished for 2017|
|Former Croatia striker Klasnic undergoes third kidney operation|