Most rubber car mats are manufactured from heavy duty materials that should last as long as the lifespan of your vehicle. Some car mats are highly resistant against temperature extremes. They don’t harden and crack because they’re already brittle. They don’t also go into a gooey consistency when it’s unusually hot. If you take proper care of your car mats you can actually see it outlasting your vehicle. The only time you need to replace your car mats is when you’re already tired of its design.