- Tag results for Kimi Raikkonen
Hamilton now leads Vettel by 70 points and with 75 remaining in the final three races he can clinch his fifth title by finishing seventh in Mexico, if Vettel wins.
A barrage of questions were expected to be directed at Raikkonen following the announcement of his switch to Sauber earlier this week.
Leclerc has had a promising start to his rookie season, finishing sixth at the Azerbaijan Grand Prix, with 16 points from 14 races.
Raikkonen's record lap was clocked in 1min 19.119sec at an average speed of 263.587 kilometres per hour (163.785 miles per hour), convincingly beating the outright record of 1:19.525.
The defending world champion came home 17.123 seconds ahead of title rival and fellow four-time champion Sebastian Vettel of Ferrari.
Vettel was out-qualified by Ferrari team-mate Kimi Raikkonen for only the third time this year, but the Finn was also not happy.
Hamilton leads Vettel by 17 points after the drive of his life from 14th on the grid to win last weekend at Hockenheim.
Wolff was adamant that the triumphant Hamilton and his team-mate Valtteri Bottas will remain free to race each other until late in the season.
Vasseur admitted he was aware of the possibility that Raikkonen could return to the team where he started his career and remain within the Ferrari family.
Max Verstappen clocked an outright circuit lap record and fastest lap as Red Bull continued to top the times.
Monegasque driver Charles Leclerc, much praised by his rivals, has scored points in four of his last five races for Sauber.
Lewis Hamilton cruised to victory in the French Grand Prix and took over at the top of the world championship standings.
Aseel Al-Hamad took the wheel of the same car in which Kimi Raikkonen won the 2012 Abu Dhabi Grand Prix.
Finnish drivers Valtteri Bottas (Mercedes) and Kimi Raikkonen (Ferrari) came second and third respectively.
Raikkonen brought an end to the eight days of pre-season testing at the Circuit de Catalunya with a best lap of 1min 17.221sec.