The half-hour session at the unique indoor-outdoor ExCeL Circuit in the afternoon heat in London saw all 22 drivers take to the track to prep ahead of the all-important finale double-header, where all three championships remained on the line.
Of the title contenders, Evans placed best with the fourth fastest time, just 0.065s shy of Vergne's session benchmark. The Kiwi's compatriot, teammate and standings leader Nick Cassidy wund up almost four-tenth back from the ultimate pace and 11th, two spots ahead of Porsche's Pascal Wehrlein - the German who sits third in the Drivers' running.
RESULTS: The full Free Practice 1 classification ahead of the Hankook London E-Prix Round 15
Form man and Season 6 title winner Antonio Felix da Costa rounded seventh in the sister factory Porsche, off the back of a stunning win-double in Portland and an almost unprecedented four wins in five races - a feat which only Season 2 champion Sebastien Buemi has matched in Formula E history.
Home hero and reigning champion Jake Dennis - the man with by far the best record in London - finds himself down in 15th with plenty to work through to get his Andretti up the grid come qualifying.
SCHEDULE: Where, when and how to watch or stream the 2024 Hankook E-Prix
It's now straight into the first race day of the double-header on Saturday 20 July as Free Practice 2 kicks off the day at 10:00 local, followed by qualifying at 12:20 local with lights out on Round 15 at 17:00 local/16:00 UTC.
For Round 16, the same schedule applies: Free Practice 3 starts at 10:00 on Sunday 21 July, followed by qualifying at 12:20 local time and the race at 17:00 local/16:00 UTC.