The 2017-2018 Formula E champion sits third in this year’s standings, 19 points off championship leader and Porsche driver Pascal Wehrlein.
Vergne is the only driver other than those using a Porsche or Jaguar powertrain to take victory this season, having finished first in Hyderabad.
Further podiums in Cape Town – where he lost the lead to Porsche’s Antonio Felix da Costa on the final lap – and last time out in Berlin, along with three other points finishes, have kept the Frenchman in the title fight at the halfway point of the year.
But following his rostrum in Berlin behind Envision Racing’s Nick Cassidy and Andretti Autosport’s Jake Dennis, Vergne admitted that DS Penske’s performance remains behind that of the Porsche and Jaguar powertrain.
“I find it amazing how he [winner Nick Cassidy] could stay in the lead and not have a deficiency in energy compared to Jake [Dennis] behind – I was certain Jake was going to win that race and I’m amazed,” said Vergne.
“Both guys are really strong and if we want a chance at winning the championship we need to wake up and we need to improve because they are in a different league at the moment.”
Source: Autosport