As part of an effort by grand prix racing’s chiefs to improve overtaking, F1 switched to a ground effect rules concept from the start of the 2022 season.
But the nature of the cars means that they produce their peak downforce close to the ground – which forces teams to have to run them as low as possible, and with super stiff suspension settings.
This has left teams boxed into a corner with hard-to-manage set-ups and means drivers are left racing cars that are not much fun.
Speaking about the difference between the old rules set and this one, Allison said: “You guys [the media] used to carry on endlessly about high-rake, low-rake cars as if that was the beginning, end, and middle of everything.
“A high-rake car was around 140mm [rear ride height]. A low-rake car would be like 120mm or whatever. Well, both of them are stratospheric ranges compared with these cars.
“These are all cars that are setting off in the 60mms. There might be a few millimetres of difference between them, but they're all just on the ground.”
Source: Autosport