BMWi Andretti driver Max Guenther became Formula E's youngest winner on Saturday when the 22-year-old German pulled off a last lap overtake in the third round of the season in the Chilean capital Santiago.
Belgian Stoffel Vandoorne finished sixth for Mercedes to take the overall lead in the all-electric series from Guenther's team mate Alexander Sims, who retired.
Guenther passed DS Techeetah's Antonio Felix Da Costa with two corners to go after the Portuguese, who had started 10th and went into the lead with two laps to go, had to slow due to soaring battery temperatures on a hot afternoon.
New Zealander Mitch Evans started on pole position at the Parque O'Higgins, led the first half of the race for Jaguar and completed the podium in third place.
Evans finished behind Nyck de Vries on track but the Mercedes driver was demoted with a five second time penalty due to excessive battery temperature and dropped to fifth.
"Without a doubt, we made a mistake with cooling the battery on Nyck's car. That compromised his sublime driving today," commented Mercedes EQ team principal Ian James.
Former McLaren F1 driver Vandoorne now has 38 points to Sims' 35 with Britain's Sam Bird third overall for Virgin Envision Racing on 28.
"That was a tough and highly eventful race for me," said Vandoorne. "My car was clattered into from all sides and afterwards didn't drive 100% straight."
Reigning champion Jean-Eric Vergne, for Techeetah was another retirement with front wing and tyre problems after he had moved up into third place in a lively race.
Venturi's Felipe Massa was forced into the wall by his own team mate Edoardo Mortara and ended up eighth.
The next race is in Mexico City on Feb. 15.
(Reporting by Alan Baldwin in London, editing by Pritha Sarkar and Christian Radnedge)
