Hankook Tire will equip the latest version of the Porsche Panamera with its new Ultra-Ultra-High-Performance (UUHP) tread.
Depending on the model or on the customer’s request, bespoke Ventus S1 evo Z tyres are used in sizes 265/45 ZR19 105Y XL ND0 for the front axle and 295/40 ZR19 108Y XL ND0 for the rear axle, or 275/40 ZR20 (106Y) XL ND0 at the front and 315/35 ZR20 (110Y) XL ND0 at the rear.
In addition to release tests which are customary in this vehicle segment, the mixed tyres used for the Porsche Panamera also went through extensive tests at maximum speed on the Nürburgring. This ensures robust tyre construction that can cope with ‘sporty’ demands at all times.
The Hankook Ventus S1 evo Z was developed specifically for the high-end vehicle segment, which is particularly demanding. It is equipped with an aramide composite material in a double-layer carcass, which prevents deformations that could be caused by heat generation.
Tyre deformation can lead to an undesired increase in the rolling circumference and cause less precise driving behaviour at high speeds.
Aramide fibres are extremely heat-resistant and are characterised by high strength, good damping properties and relatively lightweightness.
High-strength steel in the belt and bead areas gives the new Hankook tread additional stability. Combined with the reinforced sidewall, this ensures stability on the straights and steering precision at high and maximum speeds as well as sporty, dynamic handling.
The Ventus S1 evo Z has an adopted tread compound mostly used for racing tyres to ensure optimal interaction among fillers, silica and natural resins. The compound includes the latest functional polymers, which allows a consistently high grip across a wide range of applications.
The technology used in production process also adopted that of Hankook’s racing tyre development, which uses smaller production volumes and material batches. These are processed over significant amount of time so that the materials used in the compound are preserved.
Like Hankook’s other sporty tyres, the Ventus S1 evo Z features an asymmetrically designed tread pattern with a focus on sporty handling behaviour. The arrangement of individual tread blocks in relation to each other was designed to provide optimum block stiffness in various driving situations.
Three main drainage grooves positioned in the inner tread area of the wheel ensure water is drained rapidly on wet roads. In addition, Hankook says the outer tread area of the tyre has been carefully designed to feature a significantly increased tread-positive proportion so that the tyre can meet requirements such as high-performance cornering and precise lateral guidance for optimum handling, especially during sporty driving in dry conditions.
The Hankook Ventus S1 evo Z is currently equipped to a number of leading premium manufacturers‘ flagship sporty cars as original equipment tyres.
It‘s available in 15 sizes ranging from 19 to 21 inches with tread widths between 225 and 315 mm in cross-sections from the 45 to 30 series. In the coming year, additional sizes will further complement the line-up, especially in the high-end range, Hankook says.