i know a lot of perople go with the pre formed floor mats, that are shaped to perfictly fit the car, front, back and trunk.
i have 4 mats from walmart and have had them since i bought the car in 96, they are thick and tough! but one draw back.... the rear seat mats tend to slide unfer the driver and pass. seats, but easy just pull them back out and place them back where they go
and whats nice about the other floor mats is they dont mover around and cover the whole carpet, but the drawback is they are expensive and a bit harder to remove from the car when full of mud and dirt because they are so much bigger...
there are many places you can find the fitted floor mats such as e-bay, huskylinners.com, i am sure burtmans indidturies has them, so you decide whats right for you