Or, you know, CG

 If we do a CG version of the police cruiser, it'll just look something like this? Maybe?

Freestyle

In passing I'd wondered what the "freestyle" option under rendering in Blender was all about.
Well it turns out that I needed to render some blueprints of the police cruiser for The Cassandra Protocol. And to do that, you use "freestyle."

Wheels.

Servos. How do they work? Especially RC servos (especially for helicopters.)
The Fanatek Club Sport steering wheel. $200. I'm starting to wonder if the vehicle should be left-hand drive now too.

The 300 Series, v16

If we are actually going in this direction, sphere "cockpit" or "command module," and some sort of other thing at the nose, I gotta figure out how we build this. Um. It won't be easy. I'm thinking some sort of CNC-cut foam on top of a welded or bolted frame. I mean, the actors have to be able to open hatches and crawl in somehow.
If we end up really hating seeing the bicycle wheels we can put the skirts down really low -- just a couple inches off the ground.
Now that I'm looking at this I'm wondering if we want the hatches to actually be down low rather than on top. I have a sequence where a character is riding with her head out the hatch but maybe that gets altered? I don't know.

Cruiser 300 series version 09

Now I'm thinking we want the practical vehicle to be entirely remote-controlled and not have anyone have to actually ride in it.
The top of this is a Soviet moon landing vehicle.

V09

The idea I'm trying for is to have a creepily organic undercarriage which sort of "exposes" itself in the middle section, with a more geometric and block-y top section.
Obviously, I did not model the wheels, the lunar lander, or the woman. Heck, I didn't even model the other pieces, which are just greebles that I bent. Huh. I actually removed all the parts I may have actually modeled.

This is actually the bottom of a Soviet lunar lander.V10

And this is version 11:

V11