You already know, the times are expected to drop sharply during the next French Grand Prix (Otherwise, see here).
The 4.185 km of the Bugatti circuit have in fact been coated with a bituminous coating specially developed for racing circuit tracks, the Shell Cariphalte Racetrack (download the brochure in English), which already covers the tracks of Sepang (Malaysia), Sakhir (Bahrain), Marina Bay Street Circuit (Singapore), Yas Marina (Abu Dhabi), Nürburgring and Hockenheim in Germany, as well as the private test circuit of Ferrari in Fiorano, Italy.
Here is a video broadcast by Shell
https://www.youtube.com/watch?v=c7txzrvB91U
