Just so you know, I imported your model into sketchup shop, the paid web version that has solid inspector, and it failed to fix it.
You are running into a version of the tiny face issue. when vertices get too close together SU often sees them as the same point, or goes the other way and adds extra faces in the same place.
The easiest way around this is to work at a larger scale, 100 times or even 1000 times larger. This allows faces to form correctly and would solve many of your issues.
I notice you are working with imperial units, surely a Lamborghini would be metric. If you were working in metric it would be simple to use meters as millimeters. But however you do it you’ll have more success at a larger size.
I scaled up you model by 100 and solid inspector fix it no problems.
Here is a link that explains it with a few demos and another option to avoid it. The Dave Method