[fxtentacle]

Usually non-military satellites max out at 1 pixel per 30 cm, so the resolution will most likely be too bad to decide if it's a Tesla or not.

[sennight]

That might be too low of a resolution for RGB, I have a feeling that few cars would share the same spectral signature in the commonly measured bands. A lot of papers have been written on vehicle identification using SAR - so that would probably be the way to go.

[seshagiric]

There are startups like Albedo attempting at 10cm satellite imagery, but apparently 3-4 years away from launching.