A simplified front wing and a larger DRS flap on the rear form part of the aerodynamic updates for this season, with the aim being to make it easier for cars to follow each other and ultimately overtake.
Speaking via RaceFans, he said: “Yes I have followed other cars last week.
“It’s difficult to say in testing, it’s always difficult to judge because you’re on different tyres, not just different age of tyres but also different compounds and different programs.
“So far it was still tricky to follow and to overtake.”
Renault senior team manager Alain Prost is also sceptical, and believes that the sport should have just waited until 2021 when more wide-scale changes are set to be introduced.
“It’s a change that cost us a lot of money before a new and bigger change in 2021,” Prost told RTBF.
“I think it would have been better to wait until 2021 and eventually change more at that moment.
“In the tests we do not follow a car often, so we can not yet say whether it is actually easier to follow another car and overtake, although there is a small tendency to say so.
“I hope so, but I’m not completely convinced that it will be a change from day to night.”