I didn’t like the coupe much either but then I was looking to replace my Z with something as sporty but slightly bigger, the coupe was way too soft to satisfy that.I've driven a G35 coupe and was very unimpressed.
Wasn't the Suzuki Kizashi available with AWD, though those might have been CVT only?
Don't forget the Infiniti EX series/QX-WTF. They're basically a shortened G-series wagon; they don't pretend to have any offroad capability at all.
I've driven an FX35, didn't like it. Not sure if a V8 would fix that.
If the problem is mainly the steep driveway, have you tried studded tires? That's what we are doing this year for my wifes FWD Mazda 5, because of steep driveway issues.