You could check with local car decor shops in your city/town and they will sell for much cheaper rates. They are not as thick as 3M but are not bad either, and they cut to fit your floor with much better precision than online products. I use them in my car for over a year now and really like them (pics here
). Costed me 2400 bucks I think but most shops agree for ~2000 with negotiation. You may also want to stick some velcro straps on the underbelly of these mats to prevent from movements, especially on the driver side.