Originally Posted by 4jeepdiesel
The other issue is that you might be white knuckling to hold on because the GC is so fast!
This may well be the case.
I haven't encountered any real fatigue, but even with the leather, I find this wheel, though bigger, "slicker" than my old car. I find myself holding it tight and consciously peel my hand off and move to another position. I half expect to see little indentations where my fingers were.
As for the fast comment, in traffic school once, the instructor made a comment that I think rings true. "If you're holding the wheel too tight, you're driving to fast.".
It's a personal gauge of comfort and circumstance. Whether it's 20 MPH in pea soup fog or 120 MPH. I think it's a good heuristic if you watch for it. For me, this greatly manifested once when I was doing race a car simulator. At the end, my hands were, unconsciously, claws. They actually hurt, and I was just sitting in a high tech video game, trying to not hit the wall in an indy car.
I'll also experience it on my motorcycle if the road is particularly nasty sometimes.
So, you may simply not be comfortable with the car yet, the wheel may be too slick, which contributes to it, so you hold it too tight. I'm not quite "one fingering" it like I could in my old truck, toe on the accelerator, finger on the wheel, flying down the highway.
In time, I'm sure this will go away as familiarity takes over.