It may be my monitor, but I don't see where the suns are.

You need to look in the reflection of the aircar, specifically close to the painted bird on it. Right at the top of the curve of the bird's neck is Sun #1, and just to the right of it, near the tip of the wing, is Sun #1. (Named Plaia -- "The Sisters".)

Oh, man... I so wish I had one of those Kjola d/grav vehicles. Even if I couldn't operate it, just to have it in the garage to make the neighbors insanely jealous... ^_^

Anyone with a college degree or two in advanced physics or math could probably be taught to fly one...

Naw. Actually the basic operation is pretty simple.

Yes, but the basic risks inherant in d/grav travel would suggest that, perhaps, those college courses you recommend should be taken anyway Better safe than sorry.

From what I've read, binary systems are fairly common, with one sun usually quite a bit larger than the other, though I imagine planets involved in such would have a somewhat more complicated orbit than our own humdrum oval.

I didn't want my planet doing loop the loops or having a "year" that changed constantly, so what I did was posit the two mid F spectrotype suns to be nearly contact stars. Their life expectancy might be a little low, but they are also fairly young, and what's a few hundred million years less to a mere civilization that might only last thousands? The proximity of the two suns is why they appear so close together -- they'd tend to have a uniform lumnosity as well, since they don't often eclipse. And there'd be a fairly uniform duration of days and nights, differing only by minutes either way.