[MrE]

Just a guess, but I'm going with weight ratio between front and rear axles. The handling of cars changes substantially between front, mid, and rear engine. Possibly putting a wing on the front to add additional down force on the front axle would make the difference? I do know that my 33' '73 was easier to drive in high cross winds than my 40' '86, but that could also be caused by the size of the sail. The '73 also had a leaf spring front end with airbag assist.