I've noticed most new and old car steering wheels have a design where the bottom point of the wheel is obstructed by a pillar. This makes grabbing the wheel from the bottom uneasy and doesn't feel natural.
So what I have resorted to doing (and some of you as well, I assume) is using an underhand grip around 7-8 o'clock on the wheel.
This is a picture of a 92 Acura Integra, a car that was in my family for 19 years, until I sold it temporarily to a friend a few weeks ago. Despite it having a large steering wheel, I loved the design and the fact that I could comfortably and naturally grip it underhand/overhand style at the bottom (6 o'clock)
I understand performance cars aren't meant to be gripped from the bottom but I mean, most people don't drive their cars in battle mode 24/7 with 2 hands on the wheel.