I had a look under the carpets today and there was barely any dampening, mostly exposed metal. I drive a diesel, which is fairly quiet but on motorways, the sound gets in the way of listening to my music and it's starting to annoy me. Also, trying to have a conversation with my wife in the passenger seat is not that easy.
My future plans would be to save up to get the bulk pack of Dynamat Extreme, a roller kit and maybe a Haynes manual as well for good measure. Then, slowly on weekends and evenings do the panels slowly until it is all done as time is a big issue for me. That's my tentative plan so far. Any advice on how to get the Dynamat properly would be appreciated.