Replace/extend front door filling due to sound insulation

Dear forum,

In April we moved into our house and you have always supported us. Now I need to be active again and need your feedback. :-) We have a stylish front door, but we occasionally hear cars from the street. The house is about 30 m away from the street, it is a village street. In the evening no cars drive there anymore, but during the day there are occasionally some. Is there a way to retrofit the front door from the inside for sound insulation? It is completely airtight. The sound penetrates through the door leaf.

I had the following ideas:

[*]Double cladding with Knauf Silentboard, then putty. Attach with Beko construction adhesive without drilling.
[*]Glue 10 mm laminated safety glass with white glossy PVB foil.
[*]Carpenter option with rock wool and mounted new inner frame. We know him well and he is interested in the experiment.
[*]Contact door manufacturer and get a new inner insert.. that will probably be the most intense option

Attached is a photo. The window next to it is SSK 4. Nothing gets through there, except if a truck passes by. What do you think? Thanks a thousand already. I love this forum. :-)

What do you think?

Honestly? The effort of additional measures on an existing door (feasibility questionable anyway) with occasional traffic during the day on a street 30 meters away: effort vs. benefit? Better to save the money and go out to eat properly with the builder after Corona times. That would make me happier. As Confucius says: There's always a little noise.

That is a diplomatic response that also brought a smile to my wife's eyes! Thank you. :-) Now, purely theoretically assumed: would the option with the Knauf boards be possible?

I can't really contribute anything technically. But with our doors and windows, it turns out that most of the sound rather penetrates through the areas at the connections/edges. From my perspective, cladding the door panel would not lead to the desired result. Aside from whether you can really make it look "nice" visually.

You actually need something soft or cushioning but still heavy (bitumen sheets, for example). Those would prevent the thin filling from "vibrating along." So something from speaker construction ;-) but in "nice." Whether stone wool + boards are enough there? Although they are supposed to help acoustically separate rooms in timber frame construction... I would take the risk ;-) You don't have much to lose visually :p

Is the filling externally covering the wings, or why are you considering a doubling rather than replacing the filling?