NSTG8R
Elio Addict
The transitional film looks good but it might still effect optical clarity. Some states also have restrictions as to what you can put onto windows. Their website does indicate that it is optically clear and some versions are for automotive use.
Price is $65 per running foot at 60" wide.
Not too bad. Might get some for my current car and try.
If you click on a specific tint level, there's a small "free sample" you can get to check out. Thinking about the stuff myself. Could 'maybe' do an entire Elio with 2 linear feet!