Who is Sumitomo? Headquartered in Kobe, Japan and involved extensively with the tire industry since 1909, Sumitomo has very close relationships with Dunlop and Goodyear. Sumitomo has produced tires in cooperation with Dunlop and Goodyear for many years. In fact, so much engineering, technology and manufacturing is shared between them that I sometimes refer to Sumitomo as "Goodyear's Japanese subsidiary."
Are Sumitomo tires any good? Yes! Sumitomo offers a full line of great and affordable tires with good performance. I have such confidence in their products that I have used a couple of sets on my own vehicles, as well as installed some on my relatives' vehicles over the years. About ten years ago, I used their Ultra High Performance Summer HTR Z II on a Miata with great success. After enjoying the tire so much, I installed their Max Performance Summer HTR Z III on my BMW M3. I also chose the tire because it bested the Hankook Ventus V12 Evo K110 in our test of value-priced Max Performance Summer tires.
Sumitomo HTR Z III
Sumitomo HTR Sport H/P
Sumitomo doesn't just make good tires for cars, they also makes affordable, good quality tires for sporty SUVs and trucks. The Sumitomo HTR Sport H/P is a good choice to consider in the Street/Sport Truck All-Season performance category. It's designed to enhance appearance and performance by combining sports car performance and a passenger car-like ride with the big wheel plus sized look and load carrying capacity required by light trucks.
You can learn more about Sumitomo tires by reading, "Hankook Ventus V12 evo K110 vs. Sumitomo HTRZ III."