Seeing some people get a bit stressed out about how Oscar will adapt to the new regulations next year, so let's look at some historical context of how he's been able to adapt to significant changes in machinery throughout his career so far (and also do a little bit of glazing of his junior career because I cannot help myself and people do not talk enough about just how fucking nuts this kid was):
He came into British F4 with his only prior experience in single seaters being 11 races in Formula 4 UAE. In his first ever weekend he finished 3rd, 6th and 2nd in a field of 18 drivers. Across the 30 race season he scored points in every single race he finished (28), and finished on the podium in half of all races (15) to end up 2nd in the Championship in a field of 24 drivers
He participated in the 2017 Formula Renault 2.0 Rookie Test. In a field of 36 drivers - including 21 with experience in this category - he went 5th fastest in both sessions
In his first weekend in Formula Renault he finished 6th and 5th in a field of 28 drivers. Compared to his other seasons in the Junior Categories he had a pretty lackluster season, finishing out of the points 7 times in 20 races and only getting 3 podiums, but he was still able to finish 8th out of 31 drivers in the Championship, and score significantly more points than all 3 of his teammates combined (110 vs 57, 11 and 1). This was also the last time he participated in a series without winning the Championship until his rookie Formula 1 season half a decade later.
He participated in the 2018 Formula 3 Post-Season test, where he drove for two different teams. In a field of 20 drivers he finished the six sessions in 10th, 11th, 13th, 4th, 6th and 4th.
In his second season in Formula Renault new chassis, engines and tyres were used. He finished an unlucky 18th in the first race after contact while running 5th forced him to pit for a new front wing, but bounced back to finish the next race 4th in incredibly wet conditions. He finished the job of making up for his poor start the following weekend by winning both races from pole, with a fastest lap to boot. The first round was the only time he finished a race without scoring points, with his worst finish otherwise being 6th. He stood on the podium in 11 out of the 22 races, making this the second time he achieved an at least 50% podium rate over a season, and won the Championship from a field of 26 drivers.
He won his first ever Formula 3 race from 3rd on the grid. He went on to score points in every race he finished bar a single 11th, meaning he won the Championship as a Rookie from a field of 35 drivers.
He won his second ever Formula 2 race after pitting late and overtaking 7 cars in 7 laps. He proceeded to put in one of the most dominant Formula 2 seasons of all time, scoring points in every race he finished, getting at least one podium every weekend (11 out of 23 races to just narrowly miss out on a 50% podium rate for what would have been the third time in his career), and ended the season with five consecutive poles and four consecutive Feature Race victories to win the Championship from a field of 29 drivers by a whopping 60.5 points which is the fourth largest margin in the categories history.
In his second ever Formula 1 weekend he made it to Q3 and Qualified 8th, over 1.2 seconds ahead of his teammate in a car that the weekend prior had been physically incapable of completing more than a dozen laps without falling to pieces. He was unfortunately unable to benefit from his amazing qualifying in the race after a collision in the first few corners led to him pitting at the end of lap 1 and coming out last by almost 40 seconds
He received significant upgrades to give him a competitive car for the first time in his F1 career, and he immediately qualified 3rd, 0.071 seconds behind his teammate despite the fact he did not have all the upgrades yet. It is highly likely he would have finished the race in 3rd as well if not for Mclaren fumbling his strategy and dropping him to finish 4th.
tldr; Throughout Oscar's entire racing career (minus karting) he has proven at every asking that if he is given machinery capable of being competitive, he is going to be competitive immediately.
