Dark secret…

Hello guys, sometimes I really envy the USA… In Puerto Rico, for example, I saw an S class with all-around dark panes, but so that you couldn’t look through it. SOGAR THE WINDER PROTECTION SHEETS !!! So my concern: Could you not avoid the restrictive regulation by a little tuning work? More precisely: If you just built a second disc one that is completely dark, which you can also raise/lower electrically, one, you could avoid this rule, or there is another rule g? Conclusion: You could have the windows completely dark at the front left & right (and also at the back left & right)??? Thank you in advance, mfg Say