I would recommend car carpet cleaning product called Turtle Wax Power Out Carpet Cleaner. It comes in 22 fluid ounce spray cans, and is slightly more expensive than most other brands of car carpet cleaner. It is more expensive because it contains a more advanced cleaning formula with different ingredients than most other brands. For example, Turtle Wax Power Out Carpet Cleaner leaves a microscopic silicone shield over the area that it has been used to clean. This helps to repel dirt and keep the carpet clean for longer.