Stock floor mats should last the average daily-driver around 10 years / 150k miles of driving. If your current mats are from 2001, you've done very well
![rice rice](https://celicahobby.com/forums/images/graemlins/celica/rice.gif)
If you need to purchase
rear mats, generic "compact vehicle" aka size small, will work just fine. It's a simple $16 (from pepboys/autozone) replacement that look and work just as well as stock rear mats, for only a fraction of the price.
Also, a really good vacuuming followed by a thin layer of Fabreeze on the floor and the mats, then left overnight, will get back an almost "new car scent" for a good while. Don't let the Fabreeze set on your plastics or leather areas - simply wipe it off with a dry towel if it does.