My kit contains about 12-13 square feet of Dynamat material and costs around $50. For a given price, it's a good deal for me. However, I did a few google searches and it seems like a lot of DIY audio pros are into a sound deadening materials called Second Skin and Raamat. I looked on Raamat web site, and it looks like you can get something like 37 square feet of the material for around $100. So if you're willing to spend this much, per square foot it's actually cheaper than Dynamat. Once I finish all of my ongoing car projects, I might get a pack of Raamat to deaden the trunk and maybe other parts of the car. Taurus does seem to be one of the cars with noisiest interior on the road. Both engine noise and road noise are a little excessive, though not too intrusive usually. I honestly, can't remember a recent car that's as noisy as Taurus. Even 2004 Toyota Corolla is so much quieter. I am not into removing the front seats, but I'll probably deaden the rear doors, rear floor, and then trunk at some point.