Question edited for clarity, add maker.
Question moved from Misc to model category.
There can be many reasons
The number 1 reason is wheel weights missing from a tyre.
Wheel lug nuts have come off, only one left.
Wheel bearings that has failed.
Bulging tyres, normally hidden on the inside
Tyres that aren't round and have become deformed.
Engine mounts separated from the rubber pads.
Loose or worn steering parts.
Loose or worn suspension parts.
Various ideas here
https://www.google.com/search?q=2006+Toyota+Land+Cruiser+Prado+vibrates+at+around+40km+per+hour
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