Racing Point technical director Andy Green believes that front wing design restrictions for 2021 will lead to cars that will be "nasty pieces of work to drive".
Formula 1's 2021 regulations, which focus on improving the on-track competition by allowing cars to run closer together, include a more prescriptive approach to aerodynamics.
However, while the future ground effect designs should indeed allow for closer racing among drivers, Green fears that the airflow distilled by the sweeping, simpler front wing will in itself disrupt a car's handing according to research conducted by Racing Point.
Green insists this is a direct result of the restrictive nature of the 2021 regulations.
"I think there are areas that could do with being freed up around the front wing," contended the Racing Point tech boss.
"Around the front of the car I think it’s incredibly restrictive to the point where it’s really going to hurt the handling of the car.
"It's going to be a real nasty piece of work to drive.
"I think it’s something that if they allowed a little more freedom would allow us to sort that out, but still retain the intent of the ground effect car and low following wake."
Based on his research and observations, Green believes that F1's 2021 cars will be unpredictable and could potentially undermine a driver's confidence.
"Aerodynamically it’s going to be quite unstable. I don’t think that’s a nice thing to have," he added.
"You want cars that are a bit more predictable, so that drivers can attack, be sure what they’ve got underneath them, they know what’s going to happen, they can drive the car at the limit knowing that it’s stable at the limit.
"From what I see at the moment none of those statements are true for 2021.
"It’s more about what’s happening at the front of the car, and where the dirty air is going, right into the tunnels. The car currently is creating its own dirty air."