RANCHO CUCAMONGA, Calif. (Aug. 24, 2011) — Kumho Tire U.S.A. Inc. has begun shipping to dealers its new all-season ultra-high-performance (UHP) Ecsta 4X tire. The tire—originally announced at the ...

LAS VEGAS — Kumho Tire USA is bolstering its ultra-high performance (UHP) lineup, unveiling three products in the Ecsta Sport family during the SEMA Show in Las Vegas. The tires, which are being ...

SAN JOSE DEL CABO, Mexico (Jan. 10, 2011)—Kumho Tire U.S.A. Inc. said it will launch an ultra-high-performance tire with all-season capabilities, the Kumho Ecsta 4X. The Ecsta 4X will be available in ...

Over the years, we’ve seen some big changes in tires—namely, their technology and how they are marketed. The recent trend is in the extreme summer performance tire, which has become a niche market. As ...

As the PDK of the Porsche Cayman GT4 RS downshifts, I nose into a mid-speed sweeping left at maximum lateral Gs. As I do, the rear end swings out. I countersteer and dab the throttle to keep things ...