Comparing the two tires (225/40 R18 for both), the Pirelli P Zero PZ4 came out to be a little faster with a good steering response especially at corners, and overall better comfortability. But still, Vorti with its amazing looks and great dry handling came out quite entertaining when compared.
FYI, Vredestein Ultrac Vorti p is a high-performance summer tire developed by Apollo Vredestein primarily for sports cars, and premium crossovers. These tires are perfect for enthusiasts who like to put themselves in tough driving situations and have a sleek elegant looking design inspired by the Italian auto design studio Giugiaro. The best thing about this tire is that it sells itself; after being declared the star of the dry handling circuit, Vredestein ultrac Vorti p has become the go-to summer tire for all enthusiasts.
Table of Contents
Dry Traction Comparison
PZ4 provides a sporty and composed ride with stability. It performs cornering very well but does struggle with the heat. Out of the two Pirelli is a lot better than the Votri Plus.
Statistically speaking, on dry surfaces, the Pirelli P Zero PZ4 covered 33.3 meters (95.1 s handling time) to break from 100kph to 0kph. Where 36.8 meters of the Vredestein Ultrac Vorti plus with the dry handling time of 95.5 seconds puts it below Pirelli.
Although Pirelli showed better dry traction. Both of the tires average out to be the same when it comes to handling. Initially Pirelli showed a better handling performance but with time the tires weren’t able to manage heat well which directly impacted the overall average handling time of this tire.
Ultrac did well overall and heat didn’t seem to impact it much.
Still, both of these tires beat every other competitor on the dry handling test and completed a lap in a record time of 100 seconds which gives it an unusually big lead over other tires.
The Vredestein Ultrac Vorti p has a sporty feel to it but just leaves you wondering at times whether the tire is going to grip or slide, but the steering response and the speed makes it a very enjoyable tire. It is a tad stiffer on the shoulders and sidewalls, whereas the central strip is much wider which helps in dry braking and handling. It uses new high-traction tread compounds which include silica and raisin mixed with multi-purpose polymers to ensure maximum grip and braking performance on dry surfaces.
The Vredestein Ultrac Vorti p has a general traction rating of A
Wet Traction Comparison
The three circumferential grooves on Pirelli P Zero, that surround the tire aid to channel the water around to let the tire offer great wet traction. It allows the driver to keep the car stable during wet turning and speeding. It provides a better wet traction when compared to Vorti by a huge margin.
Pirelli P Zero PZ4 took 34.2 in meters where Vorti Plus took 52.8 meters to go from 100 kph to 0 kph.
For the Vorti Plus, as impressive as this tire’s performance in the dry is, it comes with a catch. It is nowhere close to its competition with regard to wet traction.
However, the tire just doesn’t meet the standards that we have come to expect from Apollo Vredestein. Some enthusiasts would argue that this tire has been over-engineered to provide the best dry braking which has left it lacking in the wet braking department.
As far as wet handling is concerned, the Vredestein Ultrac Vorti p is able to maintain an average speed of 85 kph on wet asphalt without any problems.
Comparing Rolling Resistances
The lack of void and more ratio of rubber on the PZ4 tires offer a great braking performance as the rubber grips well to the road, hence it offers a good low rolling resistance.
For Pirelli P Zero PZ4 it is averaged around 9.44 kg/t Where Vorti Plus experiences a rolling resistance of 9.6 kg/t. (The Lower the better.)
The Vredestein Ultrac Vorti p is designed for extremely high speeds and fast cornering. It is built with a mix of polymer and resin and has a significantly large apex base. The carcass, the apex area, and the area around the rim use next-generation compounds that help reduce rolling resistance, which consequently helps not only the fuel efficiency but also the tire’s lifespan. The Apex base stabilizes the tire when turning corners and stiffens up the sidewalls, thereby minimizing the twisting of the tire by the high load that it feels while making sharp turns. The stiffer build of the tire ensures that the tire ends up getting less deformed while going down the road, resulting in a minimal amount of energy loss.
Comparing Hydroplaning/Aquaplaning
The outer shoulder of P ZERO PZ4 specializes in hydroplaning, comfortable rides, and noise reduction. While the non-original equipment outer shoulder of the Pirelli P Zero PZ4 offers three wide circumferential bumps that aid water evacuation within the tires and gives a sufficient hydroplaning resistance. The aquaplaning of PZ4 can be improved.
The float speed of Vorti plus averages arround 75 km/h with the lateral acceleration in curved hydroplaning of 2.1. Compared to Pirelli P Zero PZ4’s float speed of 72.3 km/h and 2 remaining lateral acceleration in curved aquaplaning. This make Vorti Plus better.
The Aquaplaning test didn’t do this tire any favors. It did a decent job in the straight test and came in at number 2 with a float speed of 91.2; however, it came in at number 9 in the curved aquaplaning test and was the furthest from the leaders. The same design that makes it amazing at dry handling, makes it below par when it comes to aquaplaning. The inner construction of the tire consists of a layer of rayon which helps make the tire durable, but slippery and shifty at the same time which makes this tire prone to Hydroplaning when the conditions get really wet. Even though the tire has deep grooves to get rid of the water, they really don’t make any difference when the tire moves laterally through corners.
Noise and Comfort Comparison
Compare to the Vredestein Ultrac Vorti plus external noise of 72.4 dB on asphalt, the noise level of Pirelli P Zero PZ4 tires averages around 70.5 decibels or dBs.
Vredestein Ultrac Vorti P isn’t the noisiest tire, but it is one of the noisier ones if compared with some of its competitors. Its stiff treadwear combined with the deep grooves can make it a bit noisy especially on the highway. Air gets compressed inside the grooves of the tread and the deeper the grooves, the more air volume, the noisier the tire. If we talk about the noise the Vredestein Ultrac Vorti p made an external noise of 72.4 dB on asphalt
Comfort-wise this tire is second to none, it scored the same as some of the best tires in the market like the Michelin pilot sport 4 and Bridgestone Turanza T0 50 on the comfort scale.
Treadwear Comparison
Pirelli P ZERO PZ4’s internal structure incorporated two steel balls that are held together by strong nylon and Kevlar Zero Degree cap ply. The tire casing is available in 2 ply polyester, or 1 or 2 ply rayon based on the tire and whether they are original or unoriginal equipment. P ZERO PZ4s casing is also based on the symmetry of the tire; whether the tires are asymmetric or symmetric. The treadwear pattern of the PZ4 is recognized by the Specs tab. The tread compound, although it gives the P ZER PZ4 a good grip on the road, the compound is on the softer side and will wear off faster than usual.
The Ultrac Vorti p has a high-traction tread compound with an asymmetric pattern that delivers great results in dry conditions. The central rib that goes all along the tire has diagonal slits that improve steering response and precision. The outer shoulder, which is much more rigid, wider, and low-void than the inner shoulder, is responsible for providing enhanced handling whereas the inner shoulder has much more void and is designed to aid wet traction and handling. Moreover, the tire has deep grooves that allow the water to flow through the contact patch and build up resistance against aquaplaning in wet conditions. The tire itself is made with two different compounds: rayon and nylon. The rayon layer helps build up tire strength and durability, whereas the two layers of nylon are there to provide the high-speed capability. However this makes the treadwear quite sensitive to temperatures under 20 degrees F, so make sure that whenever you take these tires in the snow give it around 24 hours to return to at least 40 degrees F, otherwise the treadwear will wear out very quickly. The Vredestein Ultrac Vorti p has a treadwear rating of 320
Conclusion
Off the two, Pirelli P Zero is the clear winner. Apart from rolling resistance where Votri Plus did better, Pirelli out performed the Vredestein by a large margin. Pirelli P ZERO PZ4 possesses a great price and quality.
