I finally figured it out the other day: The Tesla cyber truck is pointing backwards !that is why it looks so odd.

  In most vehicles the long sloping part is the windshield in front and the steep slope is the rear window.   But the Tesla cyber truck turns that around and thus it appears to be driving backwards everywhere.

 Adding to the backwards illusion is the rounded mid-level panel where the grill on a normal car would be and the headlights are:   On most vehicles that headlights section on the front is angular and the also have a rounded section on the back of the at that level.  

Is there are many more quote Unquote Interesting features. For example on most vehicles the roof is flat and that gives an indication of how much headspace is in the vehicle. But the cybertruck inverts this with a peaked roof that suggests it has very little headspace. That combined with the backwards ness mentioned above Transmits a message to an observer of great discomfort when sitting inside the vehicle.

Now that may be unfair and it may be quite comfortable inside the vehicle but the outward facing shape suggests the opposite. It makes it feel very constrange and uncomfortable to look at and I suspect this is a major factor in people's dislike for the vehicle's appearance. As soon as they see it their mind responds to the shape and imagines what it is like to be inside it. That shape makes them feel uncomfortable.