The add says camping, so, no, unfortunately its not overlanding.
Overlanding requires, among other things, a catch phrase and a social media outlet, believe me, if something is overlanding you'll be told by the person selling it.
No snorkle
No ladder
No shovel, axe, or traction mats
No obnoxiously large graphics
No solar panels
No 5 gallon gas cans
No water storage
No awning
No refrigerator
No overly complexed wiring
No spare tire hanging off the back
No Instagram refrences anywhere in the add
No.... It is not Overlanding.... It's simply sleeping in your car... Or as the rest of the world calls is.... "Camping."
Reminds me of a scene in a Starbucks parking lot years ago. A parked Mercedes wagon and the Karen sitting under the lift gate on her cell. She was obviously living out of the car, she had a bankers box and a file folder open, two beautiful Golden Retrievers at het feet, as I walked by she said " You'll get the dogs back when you sign the papers ". Only in Vancouver.