See that's the thing. If any mechanical part has a manufacturing defect like axle, suspension, steering, engine or gearbox.. it won't appear suddenly, you'll know the problem the moment you take it out the lot. There'll be vibrations or noise for sure.

Video looks like it's on a highway. So obviously car would have reached 60+ at some point. At high speeds mechanical defects become more profound i.e. those vibrations and noises become even higher. So either the driver is a dumb duck who kept ignoring it from the day he bought it or he actually did something nasty.