Complex sentence: At around 12:23 a.m., at the entrance to the Pont de l'Alma tunnel, Paul lost control; the car swerved to the left of the two-lane carriageway before colliding head-on with the 13th pillar supporting the roof at an estimated speed of.
Split into simpler sentences: At around 12:23 a.m., Paul lost control of the vehicle at the entrance to the Pont de l'Alma tunnel. The car swerved to the left of the two-lane carriageway before colliding head-on with the 13th pillar supporting the roof at an estimated speed of.