These are EV specific tires and do include foam padding inside. After installation, I noticed an immediate improvement in road noise. What really impressed me was the improvement in road noise during city driving and driving over bumps specifically. The Kumhos were much quieter in both areas. The ride also felt immediately smoother and more refined over the Continentals. While the tires did also reduce road noise in highway driving, the difference was not as stark as the former mentioned scenarios. I think the explanation there is that the tires can only do so much; we all know how poor the pre-highland Model 3s are in terms of sound insulation.
Again as these are EV specific tires, they were created with range in mind. With the Continentals, I averaged 230wh/mi over 40,000 miles. I've since driven 1,500 miles with the Kumho tires, and I am sitting at 218wh/mi. Not a game changer but certainly an improvement nontheless.
Overall I am very pleased with the Kumho tires.
