Double world champion Fernando Alonso, 39, lapped fastest in a controversial appearance for Renault in Formula One's post-season 'young driver' test at Abu Dhabi's Yas Marina circuit on Tuesday.
The Spaniard, winner of 32 grands prix, is not a young driver by any stretch of the imagination but has not raced in F1 for two years and was given special dispensation ahead of a comeback next year.
He completed 105 laps, nearly two race distances, with a best time of one minute 36.333 seconds.
“It was good and very nice to be back in the car,” said Alonso, who won his titles with Renault in 2005 and 2006.
“I've been testing the 2018 car in preparation but this one felt a bit more serious and it ignited a little bit the competitive spirit. It was great to feel the modern cars and experience what they can do.”
The Spaniard said the test ticked off some basic items which would help maximise the one-and-a-half days of pre-season testing available next year.
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Some other teams had questioned the fairness of allowing him to test, with Ferrari unable to run new Spanish signing Carlos Sainz. No active F1 drivers were allowed to take part.
Mercedes had Formula E drivers Nyck de Vries and Stoffel Vandoorne and they were second and third respectively. Ferrari ran Russian Robert Shwartzman and Italian Antonio Fuoco, a factory simulator driver.
Tsunoda for Scuderia AlphaTauri
Japanese driver Yuki Tsunoda will drive for Formula One's Scuderia AlphaTauri in 2021, replacing Daniil Kvyat, the team announced on Wednesday.
Tsunoda finished third in this season's Formula Two Championship with Carlin, claiming seven podiums, two feature race victories and a win in a sprint race.
The 20-year-old will be the first driver who is born in or after 2000 to race for a Formula One team and the first Japanese driver on the grid since Kamui Kobayashi drove for the Caterham F1 Team in 2014.
The Schumacher factor
Formula Two champion Mick Schumacher and runner-up Callum Ilott tested for Haas and Alfa Romeo with Schumacher, 21, doing 125 laps but last on the timesheets.
“The key point from today was just to understand the tyres a little more,” said the German. “I think we achieved that, and I now have a pretty good knowledge of what I need to do although the tyres might be a bit different next year.
“I feel very comfortable, I know the team's happy, so that's good.”