Four wheel drives were once considered unsafe. Today, Porsche & BMW make models with top speeds exceeding 270 kilometers per hour. The speed, heavy weight and high center of gravity mean these vehicles need an impressive tire like the ADVAN ST. The ADVAN ST is W and Y speed rated with tires capable of 300km/h. The ADVAN ST is not just about speed, it's also about precise handling, superior grip and outstanding wet performance. It's everything you would expect from a premium Yokohama ADVAN tire The ADVAN Sport Terrain tire has large, stiff tread blocks to cope with the cornering loads generated by heavy, powerful high performance SUVs. Wide grooves are needed to efficiently remove water from under these wide tires.