40 years ago, Pirelli introduced a tyre that started an entire line able to satisfy all the needs of high-end mobility. It was called the P Zero, a name that has always been synonymous with performance, marking the beginning of the Ultra High Performance (UHP) tyre. It has now reached the fifth generation but remains in tune with changes in the sector.
To mark the 40th anniversary of the P Zero line, as well as the new Lancia Delta S4 Stradale, Pirelli has recreated, in a limited edition of 40 sets, the P Zero that debuted in 1985 on what was the road version of a motorsport icon – the Lancia Delta S4 Group B.
![Lancia Delta Stradale [2025]](https://www.motaauto.com/wp-content/uploads/2025/07/Pirelli-P-Zero-2025-4.jpg)
The tyre was developed with Pirelli’s experience in competition and was derived from the radial tyres that the Italian company supplied to car manufacturers competing in the World Rally Championship.
The P Zero had a complex structure with a dual-ply carcass in rayon with Kevlar reinforcements. The asymmetric tread pattern ensured maximum grip in wet and dry conditions. It was a fine example of the transfer of technology for competition to road-going cars.
Some of the models which had the P Zero as standard fitment were the Ferrari F40, Testarossa and 512TR; Lamborghini Diablo and Countach; Jaguar XJ, XK8, S-Type, XJ220 and XK; Lancia Delta; and Bentley Azure, Continental and Arnage.
Single size
This special edition is available in the 205/55 R16 size – the only one originally developed – of the Pirelli Collezione line, dedicated to iconic vehicles built between 1930 and 2000.
Original design, modern materials
Like every tyre in this range, it is distinguished by its appearance, the same as that of the era, but is made with modern materials and technologies that combine the original sportiness of the car with greater safety.
![Pirelli P Zero [2025]](https://www.motaauto.com/wp-content/uploads/2025/07/Pirelli-P-Zero-2025-1-scaled.jpg)
The re-edition of the tyre also features the innovative elements that characterized its debut. It features a single tread that combines the ‘three souls’ of the racing tyre: the inner shoulder, outer shoulder and central part of the tread.
The inner shoulder, with grooves like wet-weather tyres, ensured grip on wet roads. The outer shoulder, inspired by slick tyres, provided traction in dry conditions. The central part of the tread adopted some of the hallmarks of intermediate tyres, balancing the two extremes.
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