What was the biggest prehistoric cat ever?

The biggest prehistoric cat ever was the Smilodon, also known as the saber-toothed tiger. It lived in the Americas during the Pleistocene epoch, and was one of the largest and most powerful predators of its time. Smilodon had a massive skull and long, curved canine teeth that could grow up to 12 inches long. These teeth were used to deliver devastating blows to its prey, which included large mammals such as mammoths, mastodons, and giant ground sloths. Smilodon was likely an ambush predator, using its powerful teeth and claws to bring down its prey. It is believed to have been solitary animal, and it likely lived in open habitats such as grasslands and savannas. Smilodon became extinct around 10,000 years ago, at the end of the Pleistocene epoch.