P1racenews AI automatic summary:
A positive opening day so far for Carlos Sainz at Williams with the Spanish driver climbing to the top of the post-season test timesheet!
Carlos Sainz is leading the post-season F1 test in Abu Dhabi halfway through the session at Yas Marina Circuit. All 10 teams are running two cars – one for Pirelli testing and the other for rookie driver experience. This marks Sainz’s official debut for Williams after leaving Ferrari post Abu Dhabi Grand Prix. Ocon and Hulkenberg are also debuting for Haas and Sauber. Yuki Tsunoda is driving for Red Bull for the first time, with Leclerc and Norris in second and third for Ferrari and McLaren. Frederik Vesti is the fastest rookie due to Kimi Antonelli’s absence, his status for Mercedes is uncertain. Other rookies like Bortoleto are also in the top 10.
