title: 2017 Mexico City ePrix
context: The 2017 Mexico City ePrix (officially the 2017 FIA Formula E Julius Baer Mexico City ePrix) was a Formula E electric car race held on 1 April 2017 before a crowd of 36,000 people at the Autódromo Hermanos Rodríguez in Mexico City, Mexico. It was the fourth round of the 2016–17 Formula E season, and the second running of the event. The 45-lap race was won by Audi Sport ABT driver Lucas di Grassi after starting from 15th position. Jean-Éric Vergne finished second for the Techeetah team and Virgin driver Sam Bird came in third.
question: Who won the 2017 Mexico City ePrix?
answers: Audi Sport ABT driver Lucas di Grassi