Here are some articles and projects where we show how to do Asset Tracking. One article is about an Iceland trip, the other is about building out a GPS tracker, complete with data dashboards.

Iceland: https://blues.io/blog/vacation-gps-asset-tracker/

Full Asset Tracking Project: https://www.hackster.io/paige-niedringhaus/low-code-gps-asse...

Adapting this for a car would be straightforward.

$49 for the device and data: https://blues.io/

This feels like a dumb question, but I can't find dimensions of the Notecard anywhere and I can't quite judge the scale from the pictures. How big is it?

https://github.com/blues/note-hardware/blob/master/Notecard/... has the measurements, looks like 35mm x 30mm

Keep in mind that’s he card with a M.2 edge connector on one end. Mostly you’d be plugging that into something, at least to hook up the power/data lines. They sell “Note Carriers” for that, which end up making the combo bigger than that.

Here’s a pic of the note card plugged into their Raspberry Pi note carrier. That’s a standard 40 pin 0.1” spacing connector on the left, so it’s 2” plus the mounting holes in that dimension. 65x57mm and about 20mm tall for the stackable 40 pin socket+pins.

https://flic.kr/p/2mkQAS7

What service are they using that gives 10 yrs of connectivity for a flat price?

Probably "VC Cash".

I've got a couple of the units and can say they are working well and very easy to interface with.

It's not 10 years of unlimited data. It's 500MB of data usable over 10 years.