Fast vibrations, man
According to this customer, the car vibrates at an unusual rate of speed. 130 miles per hour to be exact. Not only is that super fast, it is dangerous, and you’d have to be going a very specific speed to find something like this out about your car. To say this person is a speed demon would be putting it lightly.
Perhaps they’re an out of work racecar driver or stuntman? If you happen to go that fast, it is safe to say your car might shake. Most commercial vehicles are not meant to be driven at such a fast speed.