On my gym the bar rests on plates that are probably 1/4" thick, maybe less. I like pulling in heels. There's a micro deficit, but I just like how rock-solid the shoes feel vs. my flat-soled Nikes.
I can't find what I remember reading about the G37(It mighta been the G35, but I don't remember) so maybe I'm just remembering things wrong. Nevertheless, there are some scorching deals on G37 sedans out there and that is one of the most enjoyable test drives I've ever gone on, and I've gone on some screamers.