I have Weathertechs in my Pontiac G8 and love them. In fact they stay in year round just to protect the carpet.
I looked for a set of "digital fit" ones when i got my 01 GT but apparently they don't have them any longer....or never made them.
Instead I found a set of Husky Floor Liners and have been extremely happy with them. They cover the entire area and have the raised edges to keep water/snow/slush for getting onto the carpet. They look good in my opinion, stay in place and clean up easily. I've had my set for 2 years and they've actually held up better than a set of Weathertechs i put in the wifes car at the same time.
Here they are...at least for a GP:
http://www.ebay.com/itm/Husky-Front-...-/191006126644
