I didn't see a quote of my post in yours, as present here, so I'll assume the "stupid question" you refer to wasn't mine since you go on to discuss what the first post entailed, not my sidebar.
That said, I do rescind my point somewhat- it seems that the issue is not present in Skirmish mode(On grossly lower detail OF COURSE) as I had swore it was a few days ago, and that the Humvee, my most frequent vehicle, just happens to be the most "weightless", as a nod buggy in skirmish mode handled quite differently, and the heavier vehicles, even the APC, are very drivable. Regardless, this is on medium-high detail("high" as in below "very high" which is obviously below "ultra", not "high" as in highEST) on a quad core, 12GB ram machine packing a 7770, It's no secret that there's some optimization to be done, but I admit it's not as game breaking as my first few analyses had falsely shown.
That's called being professional about it, perhaps even remotely useful to the devs, which is why we're discussing this at all, to help THEM. YOUR post is not any of those things