A post-race exclusion handed Jerome d’Ambrosio victory in the fifth round for the FIA Formula E Championship in Mexico City.
Lucas di Grassi had taken the chequered flag in what turned out to be a comfortable run to victory on the reconfigured grand prix circuit.
However, the car that the Brazilian used in the first half of the race was adjudged to be 1.8 kilograms underweight, prompting the exclusion.
Having been involved in a thrilling scrap for second spot for much of the race, d’Ambrosio was awarded his second win in the championship.
Sebastien Buemi has now opened up a 22 point lead at the top of the standings after inheriting second, while e.dams team-mate Nicolas Prost was third.
Venturi’s Loic Duval was in line to secure third but the Frenchman was penalised 15 seconds for exceeding track limits which dropped him to fourth.
The FIA Formula E Championship heads to Long Beach for the sixth round from April 2.