Although it was officially launched onto the market in January 1976 in the road version, the Pirelli P7™ had been experimented in the World Rally Championship races since 1974 with the Lancia Stratos. Named Supersport, the new radial brought important innovations into the world of racing tyres, such as the nylon zero degree belt and in particular an ultra-low profile geometry Serie 50. Thus, the development process of the low profile tyres that Pirelli had started with the CINTURATO CN73™, CN54™ and CN36™ (Serie 70) and with the CINTURATO CN12™ (Serie 60) between late ‘60s and early ‘70s, kept going on with the P7™. In the same way that the road version led to making the Serie 50 available to standard-model cars, the P7™ used in racing quickly introduced ultra-low profile sizes, all the way to the Serie 30. The road P7™ was adopted for the first time on the Porsche 911 Carrera Turbo, followed by the Lamborghini Urraco and Countach in 1976, as well as by the De Tomaso Pantera. In the size 195/50 VR 15, the Pirelli P7™ was also homologated for the road version of the Fiat 131 Rally
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