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.
16. Dezember 2017
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15. Dezember 2017
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|Guardiola addresses Mourinho´s tactical foul claims|
|Call the doctor! Conte protests no malice in David Luiz absence|
|Joy for Newcastle on a historic night for referee Neville|
|Sheffield Wednesday 0 Wolves 1: Brilliant Neves fires leaders seven clear|
|Premier League title City´s to lose, but Sterling wary of United charge|
|Barcelona´s Deulofeu a Clasico doubt after training injury|
|Bills QB Taylor to start v Dolphins|
|O´Mahony and Furlong sign new IRFU contracts|
|Salah ´is a player I rate a lot´, says Zidane|
|Allardyce lauds ´invaluable´ Rooney|
|Ramos fit for Club World Cup final|
|Lille sack Bielsa to end failed experiment|
|Manchester United job like Real Madrid, says Mourinho|
|Fernandinho is much better than I was, Guardiola claims|
|That Harry Kane team? – I´m over Guardiola dig, says Pochettino|
|Tuilagi and Toomua return to Leicester line-up|
|Mourinho open to January moves as Griezmann rumours swirl|
|Berizzo set for Sevilla return after cancer surgery|
|Malinga left out of Sri Lanka´s T20 squad|
|Manchester City will not go unbeaten in Premier League - Guardiola|
|Man City are the best – Pochettino braced for Spurs´ toughest test|
|Kristaps Porzingis injury update: Knicks big man says knee ´shouldn´t´ be bad|
|Conte hopeful over David Luiz´s ´serious´ knee injury|
|Neymar not an injury risk after Brazil trip - Emery|
|Bailly to miss three months due to ankle surgery|
|Klopp defends Liverpool rotation policy|
|Arsenal fan Prince Harry´s wedding day to clash with FA Cup final|
|He´s one of the best – Simeone showers Oblak with praise|
|Juventus won´t sell in-demand Pjaca, agent claims|
|Bolasie in line for Everton return after long-term injury|
|Bedene to switch back from Britain to Slovenia|
|Maradona told Real Madrid to sign Mbappe|
|Samuels out of NZ tour, Narine to miss T20s|
|Sydney FC 3 Melbourne City 1: Champions come from behind to go eight points clear|
|Red-hot Salah wins Player of the Month|
|Heynckes unaware of reported Sanches loan termination|
|Maradona: I´d have won more Ballons d´Or than Ronaldo and Messi|
|Khawaja pleased to restore parity in Perth|
|Bairstow enjoys playful celebration of crucial century|
|The Ashes Round-up: Smith leading by example again|
|Wenger confirms Wilshere contract talks imminent|
|Sensational Smith leads Australia fightback|
|We´ve never been approached by Man United – Wenger rejects Ozil reports|
|Joshua ´absolutely´ capable of unification, says Klitschko|
|Mathews fit for India-Sri Lanka series decider|
|Lewandowski demands focus ahead of Christmas|
|Fury not rushing back to take on Joshua|
|Klopp right to rotate at Liverpool – Neville|
|Overton strikes twice for England in Perth|
|LeBron´s 59th triple-double leads Cavaliers past Lakers|
|Jets offensive coordinator admits surrender in blowout loss to Broncos|
|Osweiler helps Broncos past Colts|
|England collapse to be all out for 403 in Perth|
|Donnarumma plays down Milan exit rumours|
|Barkley could leave in January – Allardyce|
|Siemian suffers shoulder injury, Osweiler in for Broncos|
|Pulisic voted youngest-ever male USA player of the year|
|Griezmann will be allowed to leave – Simeone|
|Steelers LB Shazier has begun rehabilitation process|
|Guardiola appears to aim another dig at Mourinho|
14. Dezember 2017
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|Pau stay perfect with win over Agen|
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|Almiron blocked from becoming Las Palmas coach|
|Ligue 1 adopts VAR from next season|
|Calabria extends AC Milan contract|