yesHave you had the alignment checked?
noDo you have electric assist?
caster is built in from factory it is heavy but responsive you have to have alot of muscle also keep your self in the seatCould this be excessive caster? Also, is it hard to turn (harder at speed vs parking), or is it heavy in that it is sluggish, or not light and nimble, at speed?
no both waysIs it heavier when you turn one way (say to the right) than the other?
No it has been this way since new. Front end is all good.Is this a recent development? Have you checked the condition and tightness of the nylon cups in the lower ball joints?
Do you have canards fitted?
Single or double nostril?
What is the rake of the car? Front 1/2 inch lower than rear?
Perhaps it is creating a lot of front downforce
ian
Gyroscopic or caster are the likely culprits, as it is speed dependent. Down force would only decrease your camber (make it more negative, top in) and increase your toe in. I suspect the suspension was designed to become more stable at high speeds, thus the heavy steering.This is probably due to gyroscopic reaction. Not much you can do to change it except reduce the rotational inertia with lighter wheels and tires.