Nick Cassidy sends Citroën into Formula E dreamland after 13th-to-first Mexico victory

Nick Cassidy put Citroën on the map with a stunning victory in Formula E's Mexico City E-Prix, securing the French marque's first win in the category. 

The New Zealander started in 13th and delivered yet another energy management masterclass, which saw him cycle into the lead in the closing stages. 

Once in the lead, he defended magnificently, to secure the win ahead of Edoardo Mortara and reigning world champion Oliver Rowland. 

The win has moved Cassidy into the championship lead, while polesitter Sebastien Buemi finished 17th after a disastrous race.

How the race unfolded

Veteran Sebastien Buemi started from pole position with Taylor Barnard alongside him; however, as the lights went out, Buemi ran deep into the first corner and went off the circuit. 

It dropped him to the back of the pack and promoted Barnard into the lead at the Autodromo Hermanos Rodriguez. Barnard was not in the lead for long, as positions changed frenetically in the opening laps. 

The opening half of the race was very cat and mouse, with Pascal Wehrlein progressing into the lead positions after a tactical early attack mode to recover from his poor qualifying.

However, as the halfway point struck, chaos ensued. Drivers started looking for their first attack mode, with Oliver Rowland being forced onto the grass a minute into his by Antonio Felix da Costa.

Aggressive moves started to be made, but a stoppage for Nyck de Vries on the run-off of the first corner triggered initially a full-course yellow, which became a safety car. 

The period ran from lap 17 until the end of lap 21, with Nico Müller in the lead from Edoardo Mortara, Wehrlein, Barnard and Jake Dennis. 

Buemi had recovered brilliantly to sixth, but fell to the back yet again after pitting due to a puncture. He pitted on the final lap of the safety car period, so was unable to rejoin the back of the pack.

Lap 25 and drama at Turn 5, as Da Costa spun Maximilian Günther while attempting to defend from Nick Cassidy. As Günther spun his car struck Dan Ticktum – the Briton and da Costa retired.

The pace suddenly increased as the majority of the grid started taking attack modes, with Cassidy moving into the lead on Lap 30 having spent several laps in the midfield preserving energy. It was quickly looking like another Cassidy energy masterclass.

Gaps appeared in the pack, with the top four of Cassidy, Mortara, Müller and Dennis having broken away. However, Cassidy had no attack mode remaining, putting him under threat. 

Mortara was all over the back of Cassidy, but the Citroën driver delivered a defensive masterclass. Due to Cassidy's slow-corner speed to defend, it allowed Rowland back into the podium fight. 

The reigning champion fought past Dennis for third, while Cassidy fended off Mortara to claim a famous win. Barnard pipped Dennis to fourth, right before they crossed the finish line.

Elsewhere, Wehrlein finished in sixth ahead of rookie Pepe Marti who recovered from last and a stop-and-go penalty to finish in seventh. The result moves Cassidy into the championship lead.