In this comparison, we are comparing a tyre from a manufacturer from Poland (Kormoran) against a tyre from a manufacturer from Japan (Bridgestone). Kormoran is a brand that belongs to the Michelin group. Generally, Bridgestone summer tyres are slightly better rated (86%) than Kormoran (9%). The first tyre test of Kormoran Ultra High Performance was done in 2025, compared to 2021 when was the Bridgestone Potenza Sport first tested. Important for this comparison is also the Autobild 2025 225/40 R18 test, where both the Ultra High Performance and the Potenza Sport were tested. When it comes to comparison, eu labels can be also interesting - 100% of Kormoran Ultra High Performance has C wet grip rating, whereas 93% of Bridgestone Potenza Sport has A rating.